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26 results on '"Photonics Research Group"'

1. A Suspended Silicon Terahertz platform with low loss waveguide and high Q Photonic Crystal cavities

Author

Benjamin Walter, Marc Faucher, Jean-Francois Lampin, Guillaume Ducournau, Elias Akiki, Mathias Vanwolleghem, E. Mairiaux, Bart Kuyken, Mattias Verstuyft, Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520 (IEMN), Ecole Centrale de Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique (LIA LICS/LEMAC), Ecole Centrale de Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Ecole Centrale de Lille-Université de Lille-Université Polytechnique Hauts-de-France (UPHF)-Université Polytechnique Hauts-de-France (UPHF), Photonics Research Group, Department of Information Technology (INTEC), Ghent University [Belgium] (UGENT)-Ghent University [Belgium] (UGENT), Institut d'électronique fondamentale (IEF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Universiteit Gent = Ghent University [Belgium] (UGENT)-Universiteit Gent = Ghent University [Belgium] (UGENT), Photonique THz - IEMN (PHOTONIQ THz - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Vmicro SAS (Vmicro), Photonique THz - IEMN (PHOTONIQUE THz - IEMN), Universiteit Gent = Ghent University (UGENT)-Universiteit Gent = Ghent University (UGENT), Universiteit Gent = Ghent University (UGENT), Nano and Microsystems - IEMN (NAM6 - IEMN), and NONE FOUND.

Subjects
Silicon, Materials science, Loss measurement, Optical resonators, Terahertz radiation, Physics::Medical Physics, Physics::Optics, chemistry.chemical_element, Photoacoustic imaging in biomedicine, 02 engineering and technology, 01 natural sciences, 7. Clean energy, Waveguide (optics), law.invention, [SPI]Engineering Sciences [physics], 020210 optoelectronics & photonics, Etching (microfabrication), law, 0202 electrical engineering, electronic engineering, information engineering, Cavity resonators, ComputingMilieux_MISCELLANEOUS, Photonic crystal, business.industry, 010401 analytical chemistry, 0104 chemical sciences, Optical waveguides, Etching, chemistry, Optical cavity, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, Optical losses, business
Abstract

International audience; A high Q optical resonator and ultra-low losses of a silicon suspended waveguide, are experimentally measured and presented, in order to demonstrate the working of a designed photoacoustic terahertz gas sensor presented in our previous work.

Published
2019
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2. An Integrated Photoacoustic Terahertz Gas Sensor

Author

Mattias Verstuyft, Benjamin Walter, Bart Kuyken, Mathias Vanwolleghem, Elias Akiki, Marc Faucher, Photonics Research Group, Department of Information Technology (INTEC), Universiteit Gent = Ghent University [Belgium] (UGENT)-Universiteit Gent = Ghent University [Belgium] (UGENT), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Vmicro SAS (Vmicro), Photonique THz - IEMN (PHOTONIQ THz - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Institut d’Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520 (IEMN), Ecole Centrale de Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Laboratoire International associé sur les phénomènes Critiques et Supercritiques en électronique fonctionnelle, acoustique et fluidique (LIA LICS/LEMAC), Centre National de la Recherche Scientifique (CNRS)-Ecole Centrale de Lille-Université de Lille-Université Polytechnique Hauts-de-France (UPHF)-Ecole Centrale de Lille-Université de Lille-Université Polytechnique Hauts-de-France (UPHF)-Université Polytechnique Hauts-de-France (UPHF), Institut d'électronique fondamentale (IEF), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Universiteit Gent = Ghent University (UGENT)-Universiteit Gent = Ghent University (UGENT), Universiteit Gent = Ghent University (UGENT), Photonique THz - IEMN (PHOTONIQUE THz - IEMN), Nano and Microsystems - IEMN (NAM6 - IEMN), and NONE FOUND.

Subjects
Time delay and integration, Silicon, Materials science, Technology and Engineering, Terahertz radiation, chemistry.chemical_element, 02 engineering and technology, 7. Clean energy, 01 natural sciences, Damping, law.invention, [SPI]Engineering Sciences [physics], law, 0103 physical sciences, Gas detector, Cavity resonators, ComputingMilieux_MISCELLANEOUS, 010302 applied physics, business.industry, Q-factor, Acoustics, Heating systems, 021001 nanoscience & nanotechnology, Trace gas, Amplitude, chemistry, Physics and Astronomy, Q factor, Optical cavity, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, 0210 nano-technology, business
Abstract

International audience; An on-chip gas detector that transduces absorbed terahertz light to a mechanical motion using photoacoustics is proposed. The silicon chip confines light in an optical cavity, wherein an acousto-mechanical cavity is housed. The concentration of a trace gas can be determined from the amplitude of a membrane's motion. The simulations presented predict a minimum detectable limit of 1 ppm of methanol for 1 mW of terahertz power and an integration time of 25 ms.

Published
2019
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3. Silicon waveguides for high-speed optical transmissions and parametric conversion around 2 mu m

Author

Christophe Finot, Mamon Lamy, Julien Fatome, Bart Kuyken, Guy Millot, Pierre Colman, Gunther Roelkens, Kamal Hammani, Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Photonics Research Group, Department of Information Technology (INTEC), and Universiteit Gent = Ghent University [Belgium] (UGENT)-Universiteit Gent = Ghent University [Belgium] (UGENT)

Subjects
Materials science, Silicon, chemistry.chemical_element, FOS: Physical sciences, 02 engineering and technology, Applied Physics (physics.app-ph), Signal, law.invention, 020210 optoelectronics & photonics, law, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Parametric statistics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, nonlinear optical devices, Single-mode optical fiber, Physics - Applied Physics, optical wavelength conversion, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Power (physics), Transmission (telecommunications), chemistry, Continuous wave, Optoelectronics, business, Waveguide, optical waveguide, Physics - Optics, Optics (physics.optics)
Abstract

International audience; We show that single mode Si waveguides efficiently sustain high-speed transmissions at 2 µm. We report the transmission of a 10 Gbit/s signal over 7 cm with a power penalty below 1 dB. Parametric conversion in the continuous wave regime is also demonstrated using the same waveguide structure with a conversion window over 70 nm and an efficiency as high as-25 dB that can be further increased in the pulsed pump regime.

Published
2019
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4. Simple guidelines to predict self-phase modulation patterns

Author

Frédéric Chaussard, Sonia Boscolo, Christophe Finot, Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Photonics Research Group, Aston University, and Aston University [Birmingham]

Subjects
Shock wave, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], FOS: Physical sciences, Statistical and Nonlinear Physics, 02 engineering and technology, Interference (wave propagation), 01 natural sciences, Atomic and Molecular Physics, and Optics, Spectral line, Computational physics, 010309 optics, 020210 optoelectronics & photonics, Fiber Bragg grating, Simple (abstract algebra), 0103 physical sciences, Modulation (music), 0202 electrical engineering, electronic engineering, information engineering, Self-phase modulation, Frequency modulation, Optics (physics.optics), Physics - Optics
Abstract

International audience; We present a simple approach to predict the main features of optical spectra affected by self-phase modulation (SPM), which is based on regarding the spectrum modification as an interference effect. A two-wave interference model is found sufficient to describe the SPM-broadened spectra of initially transform-limited or up-chirped pulses, whereas a third wave should be included in the model for initially down-chirped pulses. Simple analytical formulae are derived, which accurately predict the positions of the outermost peaks of the spectra.

Published
2018
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5. Offsetting Self-Phase Modulation in Optical Fibre by Sinusoidally Time-Varying Phase

Author

Frédéric Audo, Sonia Boscolo, Christophe Finot, Misha Sumetsky, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Jaworski, Marek, Marciniak, Marian, and Finot, Christophe

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, Optical fiber, genetic structures, business.industry, Phase (waves), 02 engineering and technology, 01 natural sciences, eye diseases, law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, Nonlinear fibre optics, Modulation, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, sense organs, business, Self-phase modulation, Phase modulation, ComputingMilieux_MISCELLANEOUS
Abstract

We report on our recent experimental and theoretical results on the use of a sinusoidally time-varying phase to suppress undesirable self-phase modulation of optical pulses propagating in fibre-optic systems.

Published
2018
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6. Highly Non-Degenerate Two-Photon Absorption in Silicon Wire Waveguides

Author

Nicolas Poulvellarie, François Leo, Bart Kuyken, Charles Ciret, Simon-Pierre Gorza, Université libre de Bruxelles (ULB), Optics, Photonics, Electromagnetism, Radio-Communications and Acoustics (OPERA), Photonics Research Group, Department of Information Technology (INTEC), Universiteit Gent = Ghent University [Belgium] (UGENT)-Universiteit Gent = Ghent University [Belgium] (UGENT), Universiteit Gent = Ghent University [Belgium] (UGENT), Laboratoire de Photonique d'Angers (LPHIA), and Université d'Angers (UA)

Subjects
Band gap, FOS: Physical sciences, General Physics and Astronomy, Physics::Optics, 02 engineering and technology, 01 natural sciences, Two-photon absorption, 010309 optics, 0103 physical sciences, Dispersion (optics), Absorption (logic), ComputingMilieux_MISCELLANEOUS, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Nonlinear optics, 021001 nanoscience & nanotechnology, Optique non linéaire, 3. Good health, Supercontinuum, Semiconductor, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Atomic physics, 0210 nano-technology, business, Phase modulation, Optics (physics.optics), Physics - Optics
Abstract

Nondegenerate two-photon absorption (ND TPA) is studied in a nanophotonic silicon waveguide in a configuration such that the dispersion of the nonlinear absorption and refraction cannot be ignored. It is shown that a signal wave around 1330 nm can be strongly absorbed by ND TPA with a pulse of 6-W peak power at 1850 nm. Experiments are performed with pulses of about 200 fs in a dispersion engineered waveguide in which the pump and signal pulses propagate at a similar group velocity. The experimental results are very well reproduced by numerical simulations of two coupled generalized nonlinear Schrödinger equations (GNLSEs). We show that the nonlinear dynamics can be well described by a single GNLSE despite the wavelength separation between the pump and the signal waves. We also demonstrate that in silicon nanophotonic waveguides, the dispersion of the nonlinear absorption is much larger than the dispersion of the Kerr effect. This could have an impact in the design of all-optical functions based on ND TPA, as well as on the study of supercontinuum and frequency-comb generation in integrated semiconductor-on-insulator platforms., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2018
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7. Impact of initial pulse characteristics on the mitigation of self-phase modulation by sinusoidally time varying phase

Author

Frédéric Audo, Christophe Finot, Sonia Boscolo, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), and Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
Offset (computer science), nonlinear fiber optics, 02 engineering and technology, 01 natural sciences, 010309 optics, Pulse characteristics, 020210 optoelectronics & photonics, Optics, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Chirp, Electrical and Electronic Engineering, Self-phase modulation, Self phase modulation, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], Computer simulation, Pulse (signal processing), business.industry, Pulse shaping, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, business, Phase modulation, pulse shaping
Abstract

A simple and efficient approach to suppress undesirable self-phase modulation (SPM) of optical pulses propagating in fiber-optic systems is based on imposing a sinusoidal temporal phase modulation on the pulses to offset the chirp generated by SPM (Audo et al. Opt Lett 42(15):2902–2905, 2017). Here, we present a detailed analysis of this method. We derive an exact formula for the reduction of the SPM-induced rms spectrum broadening of an initially Gaussian pulse enabled by the sinusoidal compensation, and we assess the effects of the initial pulse shape and duration on the effectiveness of the technique by means of numerical simulation. The differences between pre- and post-propagation compensation schemes are also discussed.

Published
2018
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8. Continuous-wave infrared optical gain and amplified spontaneous emission at ultralow threshold by colloidal HgTe quantum dots

Author

Ivan Infante, Pieter Geiregat, Arjan J. Houtepen, Zeger Hens, Dries Van Thourhout, Felipe Zapata, Laxmi Kishore Sagar, Christophe Delerue, Valeriia Grigel, G. Allan, Inorganic and Physical Chemistry, Universiteit Gent = Ghent University [Belgium] (UGENT), Deparment of Chemistry, Opto-electronic materials section, Delft University of Technology (TU Delft), Amsterdam Center for Multiscale Modeling, Vrije Universiteit Amsterdam [Amsterdam] (VU), Laboratoire de chimie théorique (LCT), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Physique-IEMN (PHYSIQUE-IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Department of Information Technology (INTEC), Theoretical Chemistry, AIMMS, Physics and Chemistry of Nanostructures, Universiteit Gent = Ghent University (UGENT), Physique - IEMN (PHYSIQUE - IEMN), Photonics Research Group (INTEC), and Acknowledgements This research is funded by Ghent University (Special Research Fund BOF), BelSPo (IAP 7.35, photonics@be), EU-FP7 (Navolchi), NWO (Vidi grant, No. 723.013.002) Horizon 2020 ITN Phonsi and ERC-ULPICC and ERC-PoC Interdot. P.G. acknowledges the FWO Vlaanderen for a postdoctoral fellowship. S. Flamee is acknowledged for TEM imaging of the QDs and R. Van Deun and P. Smet are acknowledged for the use of the steady-state and time-resolved photoluminescence set-up and the cryogenic spectroscopy, respectively.

Subjects
Amplified spontaneous emission, Materials science, Infrared, LIGHT-EMITTING-DIODES, SOLIDS, Physics::Optics, 02 engineering and technology, 010402 general chemistry, Population inversion, 01 natural sciences, law.invention, Optical pumping, chemistry.chemical_compound, law, General Materials Science, Stimulated emission, SDG 7 - Affordable and Clean Energy, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], SILICON, ComputingMilieux_MISCELLANEOUS, DISPLACEMENT, [PHYS]Physics [physics], business.industry, Mechanical Engineering, Mercury telluride, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Laser, 0104 chemical sciences, NANOCRYSTALS, chemistry, Physics and Astronomy, Mechanics of Materials, Quantum dot, LUMINESCENCE, Optoelectronics, PBSE, 0210 nano-technology, business
Abstract

International audience; AbstractColloidal quantum dots (QDs) raise more and more interest as solution-processable and tunable optical gain materials. However, especially for infrared active QDs, optical gain remains inefficient. Since stimulated emission involves multifold degenerate band-edge states, population inversion can be attained only at high pump power and must compete with efficient multi-exciton recombination. Here, we show that mercury telluride (HgTe) QDs exhibit size-tunable stimulated emission throughout the near-infrared telecom window at thresholds unmatched by any QD studied before. We attribute this unique behaviour to surface-localized states in the bandgap that turn HgTe QDs into 4-level systems. The resulting long-lived population inversion induces amplified spontaneous emission under continuous-wave optical pumping at power levels compatible with solar irradiation and direct current electrical pumping. These results introduce an alternative approach for low-threshold QD-based gain media based on intentional trap states that paves the way for solution-processed infrared QD lasers and amplifiers.

Published
2018
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9. Performance optimisation of dual-pump NALM fibre laser using machine learning inference

Author

Sergei K. Turitsyn, Christophe Finot, Sonia Boscolo, Ilya Gukov, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), and Finot, Christophe

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], Ring (mathematics), [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Inference, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, Dual (category theory), law.invention, 010309 optics, Optics, Predictive regression, law, Fiber laser, 0103 physical sciences, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS
Abstract

We apply predictive regression to find optimum operating regimes in a recently proposed layout of a flexible Figure-8 laser having two independently pumped segments of active fibre in its bidirectional ring.

Published
2018

10. All-Optical Reservoir Computing on a Photonic Chip Using Silicon-Based Ring Resonators

Author

Florian Denis-le Coarer, Matthias Freiberger, Peter Bienstman, Damien Rontani, Marc Sciamanna, Joni Dambre, Andrew Katumba, Chaire Photonique, Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS), CentraleSupélec-Université de Lorraine (UL)-CentraleSupélec-Université de Lorraine (UL), CentraleSupélec-Université de Lorraine (UL), Photonics Research Group, Department of Information Technology (INTEC), Universiteit Gent = Ghent University [Belgium] (UGENT)-Universiteit Gent = Ghent University [Belgium] (UGENT), Internet Technology and Data Science Lab (IDLab), Universiteit Antwerpen [Antwerpen]-Universiteit Gent = Ghent University [Belgium] (UGENT), Fondation Supelec,Préfecture de Région Grand-EstMetz MétropoleDépartement de la Moselle, AIRBUS GDI Simulation, through the funding of the Chair in Photonics and PIANO project., BELSPO IAP P7-35 program Photonics@be AFOSR (grant No. FA-9550-15-1-0279 and FA9550-17-1-0072), European Project: 688579,H2020,H2020-ICT-2015,PHRESCO(2015), Laboratoire matériaux organiques à propriétés spécifiques ( LMOPS ), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces ( LEPMI ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National Polytechnique de Grenoble ( INPG ) -Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National Polytechnique de Grenoble ( INPG ) -Université Savoie Mont Blanc ( USMB [Université de Savoie] [Université de Chambéry] ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Matériaux Optiques, Photonique et Systèmes ( LMOPS ), CentraleSupélec-Université de Lorraine ( UL ) -CentraleSupélec-Université de Lorraine ( UL ), CentraleSupélec-Université de Lorraine ( UL ), Department of Information Technology ( INTEC ), Ghent University [Belgium] ( UGENT ) -Ghent University [Belgium] ( UGENT ), Internet Technology and Data Science Lab ( IDLab ), Universiteit Antwerpen [Antwerpen]-Ghent University [Belgium] ( UGENT ), European Project : 688579,H2020,H2020-ICT-2015,PHRESCO ( 2015 ), Universiteit Gent = Ghent University (UGENT)-Universiteit Gent = Ghent University (UGENT), and Universiteit Antwerpen = University of Antwerpen [Antwerpen]-Universiteit Gent = Ghent University (UGENT)

Subjects
Silicon, Nonlinear optics, Technology and Engineering, Bistability, SELF-PULSATION, Silicon photonics, Optical ring resonators, 02 engineering and technology, Topology, 01 natural sciences, law.invention, 010309 optics, Resonator, [SPI]Engineering Sciences [physics], law, BISTABILITY, SYSTEMS, 0103 physical sciences, [ SPI ] Engineering Sciences [physics], Resonators, [NLIN]Nonlinear Sciences [physics], Electrical and Electronic Engineering, Ring resonators, Reservoir computing, Physics, [PHYS]Physics [physics], [ PHYS ] Physics [physics], silicon photonics, business.industry, [ NLIN ] Nonlinear Sciences [physics], 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, ring resonators, Optical waveguides, Nonlinear system, Photonics, FILTER, Reservoirs, NONLINEAR MICRORING RESONATORS, HARDWARE IMPLEMENTATION, 0210 nano-technology, business
Abstract

We present in our work numerical results on the performance of a $\mathbf {4 \times 4}$ swirl-topology photonic reservoir integrated on a silicon chip. Nonlinear microring resonators are used as nodes. We analyze the performance of such a reservoir on a classical nonlinear Boolean task (the delayed XOR task) for: various designs of the reservoir in terms of lengths of the waveguides between consecutive nodes, and various injection parameters (injected power and optical detuning). From this analysis, we find that this kind of reservoir can perform–for a large variety of parameters–the delayed XOR task at 20 Gb/s with bit error rates lower than $\mathbf {10^{-3}}$ and an averaged injection power lower than 2.5 mW.

Published
2018
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11. Nonlinear Pulse Shaping in Fibres for Pulse Generation and Optical Processing

Author

Christophe Finot, Sonia Boscolo, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), and Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
Optical fiber, Optical communication, Physics::Optics, 02 engineering and technology, 01 natural sciences, Signal, law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, law, Distortion, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, lcsh:QC350-467, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Signal processing, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Pulse shaping, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Supercontinuum, business, lcsh:Optics. Light, Bandwidth-limited pulse
Abstract

International audience; The development of new all-optical technologies for data processing and signal manipulation is a field of growing importance with a strong potential for numerous applications in diverse areas of modern science. Nonlinear phenomena occurring in optical fibres have many attractive features and great, but not yet fully explored potential in signal processing. Here, we review recent progress on the use of fibre nonlinearities for the generation and shaping of optical pulses and on the applications of advanced pulse shapes in all-optical signal processing. Amongst other topics, we will discuss ultrahigh repetition rate pulse sources, the generation of parabolic shaped pulses in active and passive fibres, the generation of pulses with triangular temporal profiles, and coherent super-continuum sources. The signal processing applications will span optical regeneration, linear distortion compensation, optical decision at the receiver in optical communication systems, spectral and temporal signal doubling and frequency conversion.

Published
2012
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12. Pulse shaping in mode-locked fiber lasers by in-cavity spectral filter

Author

Christophe Finot, Periklis Petropoulos, Huseyin Karakuzu, Sonia Boscolo, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Optoelectronics Research Centre, University of Southampton [Southampton], Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and University of Southampton

Subjects
Femtosecond pulse shaping, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Physics::Optics, 02 engineering and technology, Injection seeder, 01 natural sciences, Pulse shaping, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, Mode-locking, Fiber Bragg grating, law, Fiber laser, Optical cavity, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, business, Bandwidth-limited pulse
Abstract

International audience; We numerically show the possibility of pulse shaping in a passively mode-locked fiber laser by inclusion of a spectral filter into the laser cavity. Depending on the amplitude transfer function of the filter, we are able to achieve various regimes of advanced temporal waveform generation, including ones featuring bright and dark parabolic-, flat-top-, triangular- and saw-tooth-profiled pulses. The results demonstrate the strong potential of an in-cavity spectral pulse shaper for controlling the dynamics of mode-locked fiber lasers.

Published
2014
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13. Tailored waveform generation in mode-locked fiber lasers by in-cavity pulse shaper

Author

Christophe Finot, Sonia Boscolo, Periklis Petropoulos, Finot, Christophe, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Optoelectronics Research Centre, University of Southampton [Southampton], Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), and University of Southampton

Subjects
Femtosecond pulse shaping, [PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Physics::Optics, 02 engineering and technology, Injection seeder, Laser, 01 natural sciences, Pulse shaping, law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, Fiber Bragg grating, Multiphoton intrapulse interference phase scan, law, Fiber laser, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, business, Bandwidth-limited pulse
Abstract

International audience; We numerically show the possibility of pulse shaping in a mode-locked fiber laser by inclusion of an amplitude-phase spectral filter into the laser cavity. Various advanced temporal waveforms are generated, including parabolic, flat-top and triangular pulses.

Published
2014

14. Pulse transition to similaritons in normally dispersive fibre amplifiers

Author

Christophe Finot, Sonia Boscolo, Kamal Hammani, SLCO, Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Photonics Research Group, Aston University, Aston University [Birmingham], Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), and Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS )

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], Pulse (signal processing), business.industry, Amplifier, 02 engineering and technology, 01 natural sciences, Computer Science::Digital Libraries, Atomic and Molecular Physics, and Optics, Optical fibre amplifiers, Electronic, Optical and Magnetic Materials, 010309 optics, 020210 optoelectronics & photonics, Optics, 0103 physical sciences, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, business
Abstract

selected by the editors of Journal of Optics as a Highlight of 2013a video linked to the experiments can be seen at : http://youtu.be/thbXaW91D5g; International audience; A detailed experimental characterization of the transition process of an initially Gaussian pulse to the asymptotic self-similar parabolic solution in optical fibre amplifiers operating in the normal dispersion regime is performed.

Published
2013
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15. Amplifier similariton fiber laser with nonlinear spectral compression

Author

Sergei K. Turitsyn, Christophe Finot, Sonia Boscolo, Photonics Research Group, Aston University, Aston University [Birmingham], Sch Engn & Appl Sci, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Femtosecond pulse shaping, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Amplifier, Physics::Optics, 02 engineering and technology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, law, Pulse compression, Fiber laser, 0103 physical sciences, Ultrafast laser spectroscopy, 0202 electrical engineering, electronic engineering, information engineering, Laser power scaling, business, Bandwidth-limited pulse
Abstract

International audience; We propose a new concept of a fiber laser architecture supporting self-similar pulse evolution in the amplifier and nonlinear spectral pulse compression in the passive fiber. The latter process allows for transform-limited picosecond pulse generation, and improves the laser's power efficiency by preventing strong spectral filtering from being highly dissipative. Aside from laser technology, the proposed scheme opens new possibilities for studying nonlinear dynamical processes. As an example, we demonstrate a clear period-doubling route to chaos in such nonlinear laser system.

Published
2012
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16. Nonlinearly generated advanced pulse waveforms for optical signal processing

Author

Christophe Finot, Sonia Boscolo, Photonics Research Group, Aston University, Aston University [Birmingham], SLCO, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Signal processing, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Pulse (signal processing), Optical communication, Physics::Optics, 02 engineering and technology, 01 natural sciences, Signal, Supercontinuum, 010309 optics, 020210 optoelectronics & photonics, Optics, Distortion, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, business, Bandwidth-limited pulse, Optical communications repeater
Abstract

International audience; Nonlinear phenomena occurring in optical fibres have many attractive features and great, but not yet fully explored potential in signal processing. Here, we review recent progress on the use of fibre nonlinearities for the generation and shaping of optical pulses, and on the applications of advanced pulse waveforms in all-optical signal processing. Among other topics, we will discuss ultrahigh repetition-rate pulse sources, the generation of parabolic-shaped pulses in active and passive fibres, the generation of pulses with triangular temporal profiles, and coherent supercontinuum sources. The signal processing applications will span optical regeneration, linear distortion compensation, optical decision at the receiver in optical communication systems, spectral and temporal signal doubling, and frequency conversion.

Published
2012
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17. Exploiting the localized surface plasmon modes in gold triangular nanoparticles for sensing applications

Author

Branko Kolarić, Bjorn Maes, Honghui Shen, Rodica Morarescu, Renaud A. L. Vallée, Pascal Damman, Laboratoire Interfaces and Fluides Complexes, Université de Mons (UMons), Photonics Research Group (INTEC), Universiteit Gent = Ghent University [Belgium] (UGENT), Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Micro- and Nanophotonic Materials Group

Subjects
Materials science, Technology and Engineering, NANOPRISMS, Nanoparticle, Physics::Optics, Near and far field, Plasmon, 02 engineering and technology, METAL NANOPARTICLES, 010402 general chemistry, 01 natural sciences, Molecular physics, Optics, Materials Chemistry, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], SPECTROSCOPY, business.industry, Surface plasmon, General Chemistry, RESONANCE, 021001 nanoscience & nanotechnology, Aspect ratio (image), Surface plasmon polariton, 0104 chemical sciences, SIZE, NANOSPHERE LITHOGRAPHY, gold triangular nanoparticles, Nanosphere lithography, 0210 nano-technology, business, Localized surface plasmon
Abstract

6 pages; International audience; In this study we investigate and exploit, for optical sensing, the surface plasmon excitation in gold triangular nanoparticles with high aspect ratios (i.e., the ratio of the edge length of the triangles with the height) prepared by nanosphere lithography. As shown previously, the shape and size of these nanoparticles were used to tune their optical properties, monitored by far field extinction spectroscopy. Interestingly, several localized surface plasmon resonances were detected in the visible and near infrared regions and were attributed to dipole and quadrupole modes. These modes, identified from numerical simulations, ''red-shift'' as the aspect ratio of the particles increases. The plasmon modes observed for larger triangles exhibit unexpected sensitivity with a change in the refractive index. From experiments and numerical simulations, this higher sensitivity has been attributed to an increase of the local field enhancement for sharper tips. This new effect can provide important information for the design of particles as building blocks for sensing applications.

Published
2012
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18. Nonlinear spectral shaping and optical rogue events in fiber-based systems

Author

Julien Fatome, Goëry Genty, Kamal Hammani, Guy Millot, Christophe Finot, Sonia Boscolo, John M. Dudley, Bertrand Kibler, SLCO, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Photonics Research Group, Aston University, Aston University [Birmingham], Tampere University of Technology [Tampere] ( TUT ), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies ( FEMTO-ST ), Université de Technologie de Belfort-Montbeliard ( UTBM ) -Ecole Nationale Supérieure de Mécanique et des Microtechniques ( ENSMM ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Tampere University of Technology [Tampere] (TUT), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Optical fiber, Physics::Optics, 02 engineering and technology, 01 natural sciences, Stability (probability), law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, law, 0103 physical sciences, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, Fiber, Electrical and Electronic Engineering, Instrumentation, Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Pulse shaping, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Supercontinuum, Nonlinear system, Control and Systems Engineering, Peregrine soliton, business
Abstract

International audience; We provide an overview of our recent work on the shaping and stability of optical continua in the long pulse regime. Fibers with normal group-velocity dispersion at all-wavelengths are shown to allow for highly coherent continua that can be nonlinearly shaped using appropriate initial conditions. In contrast, supercontinua generated in the anomalous dispersion regime are shown to exhibit large fluctuations in the temporal and spectral domains that can be controlled using a carefully chosen seed. A particular example of this is the first experimental observation of the Peregrine soliton which constitutes a prototype of optical rogue-waves.

Published
2012
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19. 100 nm period grating by high-index phase-mask immersion lithography

Author

Yannick Bourgin, Yves Jourlin, Jurgen Van Erps, Richard M. De La Rue, O. Parriaux, Petri Karvinen, Anne Talneau, Nicolas Passilly, David Troadec, Svetlen Tonchev, Ahmad Rifqi Md Zain, Colette Veillas, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Laboratoire Hubert Curien (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut of the Solid State Physics (ISSP), Bulgarian Academy of Sciences (BAS), University of Joensuu, Department of Physics and Mathematics (JOE), University of Joensuu, Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Photonics Research Group, Centre for Communication, University of Bristol [Bristol], Dpt of Electronics & Electrical Engineering, University of Glasgow, Department of Applied Physics and Photonics [Brussels] (TONA), Vrije Universiteit Brussel (VUB), European Project: 241479,EC:FP7:HEALTH,FP7-HEALTH-2009-single-stage,NEMO(2009), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN], Laboratoire Hubert Curien [Saint Etienne] (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), and Applied Physics and Photonics

Subjects
Materials science, Lithography, Nanostructure fabrication, 02 engineering and technology, Grating, 01 natural sciences, law.invention, Interference lithography, 010309 optics, Optics, law, 0103 physical sciences, Blazed grating, Photography, Nanotechnology, MIRRORS, ARRAYS, Diffraction grating, Immersion lithography, ComputingMilieux_MISCELLANEOUS, Subwavelength structures, INTERFERENCE LITHOGRAPHY, FABRICATION, business.industry, Equipment Design, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, Equipment Failure Analysis, Refractometry, Resist, Diffraction gratings, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 0210 nano-technology, business, Next-generation lithography
Abstract

The interferogram of a high index phase mask of 200 nm period under normal incidence of a collimated beam at 244 nm wavelength with substantially suppressed zeroth order produces a 100 nm period grating in a resist film under immersion. The paper describes the phase mask design, its fabrication, the effect of electron-beam lithographic stitching errors and optical assessment of the fabricated sub-cutoff grating. (C) 2010 Optical Society of America

Published
2010
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20. Resonance tuning of two-photon absorption microcavities for wavelength-selective pulse monitoring

Author

John F. Donegan, Weihua Guo, T. Krug, A.L. Bradley, J. O'Dowd, Liam P. Barry, H. Folliot, P.J. Maguire, Michael Lynch, Semiconductor Photonics Group, Trinity College Dublin, Ireland (SEMICOND. PHOTONICS GROUP, TRINITY COLL., DUBLIN, IRELAND), Trinity College Dublin, Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Research Institute for Networks and Communications Engineering (RINCE), Dublin City University [Dublin] (DCU), Dublin City University [Dublin] (DCU)-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority-School of Electronic Engineering, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, cavity resonators, Physics::Instrumentation and Detectors, Optical communication, Photodetector, Physics::Optics, 02 engineering and technology, Two-photon absorption, high-speed optical techniques microcavities monitoring nonlinear optics optical communication equipment optical tuning photodetectors two-photon processes, 020210 optoelectronics & photonics, Optics, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Absorption (electromagnetic radiation), GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), business.industry, 020208 electrical & electronic engineering, Detector, Nonlinear optics, Resonance, Cavity resonator filters, Physics::Classical Physics, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Computer Science::Other, Wavelength, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, business
Abstract

PUBLISHED, We showthe potential use of a single photodetector for multichannel pulse monitoring. Two-photon absorption in a microcavity structure is used as the nonlinear optical technique for pulse monitoring. Angle tuning of the device allows the resonance to be tuned. For the device studied here that is optimized for 2-ps pulses, a possible tuning range of 55 nm is shown., SFI

Published
2009
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21. Chromatic Dispersion Monitoring of 80-Gb/s OTDM Data Signal via Two-Photon Absorption in a Semiconductor Microcavity

Author

P.J. Maguire, Michael Lynch, H. Folliot, J. O'Dowd, A.L. Bradley, K. Bondarczuk, Weihua Guo, Liam P. Barry, John F. Donegan, Research Institute for Networks and Communications Engineering (RINCE), Dublin City University [Dublin] (DCU)-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority-School of Electronic Engineering, Dublin City University [Dublin] (DCU), Semiconductor Photonics Group, Trinity College Dublin, Ireland (SEMICOND. PHOTONICS GROUP, TRINITY COLL., DUBLIN, IRELAND), Trinity College Dublin, Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne, PAI Ulysses 2004-05, Dublin CU, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), and Folliot, Hervé

Subjects
Materials science, [SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, Optical communication, Data signal, Physics::Optics, 02 engineering and technology, 01 natural sciences, Two-photon absorption, 010309 optics, 020210 optoelectronics & photonics, Optics, Time-division multiplexing, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Absorption (electromagnetic radiation), business.industry, Detector, [PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Semiconductor, Monitoring data, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Optoelectronics, business, Two photon absorption microcavities OTDM chromatic dispersion monitoring
Abstract

3 pages cité dans Nature Photonics Mars 2007 Vol 1 p 151; International audience; In this letter, a novel method of chromatic dispersion monitoring via two-photon absorption (TPA) is investigated. A specially designed semiconductor microcavity is employed as a TPA detector for monitoring data signals operating at rates up to 80Gb/s. As the microcavity has a wavelength-dependent response, a single device can be used to monitor multiple channels in a multiwavelength optical telecommunication system

Published
2007

22. Dispersion Monitoring for High-Speed WDM Networks via Two-Photon Absorption in a Semiconductor Microcavity

Author

Marciniak, Marian, Maguire, P.J., Bondarczuk, K., Barry, Liam, O'Dowd, John, Guo, W.H., Lynch, M., Bradley, L., Donegan, J.F., Folliot, Hervé, Research Institute for Networks and Communications Engineering (RINCE), Dublin City University [Dublin] (DCU)-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority-School of Electronic Engineering, Semiconductor Photonics Group, Trinity College Dublin, Ireland (SEMICOND. PHOTONICS GROUP, TRINITY COLL., DUBLIN, IRELAND), Trinity College Dublin, Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Ulysses PAI, Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne

Subjects
Physics, business.industry, Bandwidth (signal processing), Optical communication, Physics::Optics, 02 engineering and technology, 01 natural sciences, Two-photon absorption, 010309 optics, Wavelength, 020210 optoelectronics & photonics, Optics, microcavity, Wavelength-division multiplexing, 0103 physical sciences, Dispersion (optics), [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, two-photon absorption, Optical filter, business, wavelength division multiplexing, dispersion monitoring, Photonic crystal
Abstract

International audience; Due to the continued demand for bandwidth, network operators have to increase the data rates at which individual wavelengths operate at. As these data rates will exceed 100 Gbit/s in the next 5 – 10 years, it will be crucial to be able to monitor and compensate for the amount of chromatic dispersion encountered by individual wavelength channels. This paper will focus on the use of the novel nonlinear optical-to-electrical conversion process of Two-Photon Absorption (TPA) for dispersion monitoring. By incorporating a specially designed semiconductor microcavity, the TPA response becomes wavelength dependent, thus allowing simultaneous channel selection and monitoring without the need for external wavelength filtering.

Published
2006
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23. All-Optical Sampling Utilising Two-Photon Absorption in a Semiconductor Micro-Cavity

Author

T. Krug, John F. Donegan, Liam P. Barry, A.L. Bradley, Hervé Folliot, P.J. Maguire, Michael D. Lynch, Research Institute for Networks and Communications Engineering (RINCE), Dublin City University [Dublin] (DCU)-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority-School of Electronic Engineering, Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne

Subjects
Physics, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Optical communication, Physics::Optics, Sampling (statistics), 02 engineering and technology, 01 natural sciences, Two-photon absorption, 010309 optics, All optical, 020210 optoelectronics & photonics, Optics, Semiconductor, Temporal resolution, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Electrical and Electronic Engineering, business, Absorption (electromagnetic radiation), Sensitivity (electronics)
Abstract

International audience; A highly-efficient optical sampling system based on two-photon absorption in a semiconductor microcavity is presented. The sensitivity of the sampling system is calculated to be 0.1 mW/sup 2/ with a temporal resolution of 2 ps.

Published
2005
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24. High-sensitivity two-photon absorption microcavity autocorrelator

Author

A.L. Bradley, John F. Donegan, T. Krug, G. Hill, Hervé Folliot, J.S. Roberts, Liam P. Barry, Michael Lynch, Semiconductor Photonics Group (SEMICONDUCTOR PHOTONICS GROUP), Trinity College Dublin, Semiconductor Photonics Group, Trinity College Dublin, Ireland (SEMICOND. PHOTONICS GROUP, TRINITY COLL., DUBLIN, IRELAND), Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), National Centre for III-V Technologies (EPSRC), University of Sheffield [Sheffield], Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne

Subjects
Materials science, Autocorrelator, Photodetector, Physics::Optics, III-V semiconductors aluminium compounds gallium arsenide high-speed optical techniques micro-optics microcavities optical communication equipment optical correlation photodetectors two-photon processes, 02 engineering and technology, 01 natural sciences, Two-photon absorption, law.invention, 010309 optics, Optics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optical communication, Electrical and Electronic Engineering, Optoelectronics, Absorption (electromagnetic radiation), Cavities, correlation, nonlinear detection, optical pulse measurements, photodetectors, photodiodes, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), autocorrelator, Photocurrent, business.industry, Condensed Matter::Other, Photoconductivity, 020208 electrical & electronic engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Photodiode, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, business, Sensitivity (electronics)
Abstract

PUBLISHED, A GaAs-AlAs microcavity device has been used as a photodetector in an autocorrelator for measuring the temporal pulsewidth of 1.5-/spl mu/m optical pulses. Enhancement of the two-photon absorption photocurrent due to the microcavity structure results in an autocorrelation (average power times peak power) sensitivity of 9.3/spl times/10/sup -4/ (mW)/sup 2/, which represents two orders of magnitude improvement when compared with conventional autocorrelators

Published
2004
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25. Effects of fourth-order fiber dispersion on ultrashort parabolic optical pulses in the normal dispersion regime

Author

Christophe Finot, Brandon G. Bale, Sonia Boscolo, Kamal Hammani, Photonics Research Group, Aston University, Aston University [Birmingham], Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Femtosecond pulse shaping, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Physics::Optics, Statistical and Nonlinear Physics, 02 engineering and technology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Supercontinuum, 010309 optics, 020210 optoelectronics & photonics, Optics, Multiphoton intrapulse interference phase scan, 0103 physical sciences, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, Dispersion-shifted fiber, business, Ultrashort pulse, Bandwidth-limited pulse, Photonic-crystal fiber
Abstract

International audience; We propose a new method for the generation of both triangular-shaped optical pulses and flat-top, coherent supercontinuum spectra using the effect of fourth-order dispersion on parabolic pulses in a passive, normally dispersive highly nonlinear fiber. The pulse re-shaping process is described qualitatively and is compared to numerical simulations.

Published
2011
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26. Highly-efficient optical sampling based on two-photon absorption in a semiconductor micro-cavity device

Author

M.L. Lynch, T. Krug, John F. Donegan, Hervé Folliot, P.J. Maguire, Liam P. Barry, A.L. Bradley, Research Institute for Networks and Communications Engineering (RINCE), Dublin City University [Dublin] (DCU)-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority-School of Electronic Engineering, Semiconductor Photonics Research Group, Trinity College Dublin-Science Foundation Ireland-Enterprise Ireland-Higher Education Authority, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), OSA, Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne, and Fève, Sylvain

Subjects
[PHYS.PHYS.PHYS-OPTICS] Physics [physics]/Physics [physics]/Optics [physics.optics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, 020208 electrical & electronic engineering, Optical communication, Nonlinear optics, 02 engineering and technology, Semiconductor device, Two-photon absorption, Photon counting, 020210 optoelectronics & photonics, Optics, Semiconductor, Temporal resolution, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Absorption (electromagnetic radiation), business
Abstract

CLEO subject 8 "Ultrafast Optics, Optoelectronics and applications", technical session “Ultrafast Measurement Techniques” [CTuAA5]; International audience; We demonstrate a highly-efficient optical sampling system based upon the nonlinear process of Two-Photon Absorption in a specially designed semiconductor micro-cavity. The sensitivity of the system is around 0.1mW2 and the temporal resolution is 2ps.

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