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11 results on '"David Mechin"'

1. Highly birefringent chalcogenide optical fiber for polarization-maintaining in the 3-8.5 µm mid-IR window

Author

Mickael Brun, Mathieu Carras, Jean-Luc Adam, Johann Troles, Laurent Brilland, Thierry Jouan, Simon Ferré, David Mechin, Laurent Provino, Celine Caillaud, Clement Gilles, Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-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)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales (PERFOS), association PERFOS, Centre National de la Recherche Scientifique (CNRS), Direction Générale de l’Armement (DGA), 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)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
All-silica fiber, Optical fiber, Materials science, business.industry, Polarization-maintaining optical fiber, 02 engineering and technology, Microstructured optical fiber, 021001 nanoscience & nanotechnology, 01 natural sciences, Graded-index fiber, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Optics, law, 0103 physical sciences, Optoelectronics, Dispersion-shifted fiber, [CHIM]Chemical Sciences, 0210 nano-technology, business, Plastic optical fiber, Photonic-crystal fiber
Abstract

International audience; A highly birefringent polarization-maintaining chalcogenide microstructured optical fiber (MOF) covering the 3-8.5 µm wavelength range has been realized for the first time. The fiber cross-section consists of 3 rings of circular air holes with 2 larger holes adjacent to the core. Birefringence properties are calculated by using the vector finite-element method and are compared to the experimental ones. The group birefringence is 1.5x10−3 and fiber losses are equal to 0.8 dB/m at 7.55 µm.

Published
2016
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2. Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber

Author

Christian Rosenberg Petersen, Laurent Brilland, Celine Caillaud, Ole Bang, Johann Troles, David Mechin, Yi Yu, Uffe Møller, Barry Luther-Davies, Xin Gai, and Irnis Kubat

Subjects
Optical amplifier, Optical fiber, Materials science, Nonlinear optics, business.industry, Nonlinear optical materials, Supercontinuum generation, Optical parametric amplifier, Atomic and Molecular Physics, and Optics, law.invention, Supercontinuum, Core (optical fiber), Fibers, Optics, Zero-dispersion wavelength, law, Dispersion (optics), Microstructured fibers, business, Photonic-crystal fiber
Abstract

A low-loss suspended core As38Se62 fiber with core diameter of 4.5 μm and a zero-dispersion wavelength of 3.5 μm was used for mid-infrared supercontinuum generation. The dispersion of the fiber was measured from 2.9 to 4.2 μm and was in good correspondence with the calculated dispersion. An optical parametric amplifier delivering 320 fs pulses with a peak power of 14.8 kW at a repetition rate of 21 MHz was used to pump 18 cm of suspended core fiber at different wavelengths from 3.3 to 4.7 μm. By pumping at 4.4 μm with a peak power of 5.2 kW coupled to the fiber a supercontinuum spanning from 1.7 to 7.5 μm with an average output power of 15.6 mW and an average power >5.0 μm of 4.7 mW was obtained.

Published
2015
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3. Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers

Author

Laurent Brilland, Trevor M. Benson, Christian Rosenberg Petersen, David Mechin, Irnis Kubat, Angela B. Seddon, Peter M. Moselund, Ole Bang, and Uffe Møller

Subjects
Infrared devices, Microstructured optical fibers, Mid-infrared supercontinuum, Optical pumping, Optical fiber, Materials science, Glass fibers, POWER, Optical parametric oscillators, Chalcogenide glass, Supercontinuum generation, PHOTONIC CRYSTAL FIBERS, NM, Solitons, law.invention, chemistry.chemical_compound, 4.5 MU-M, Zero-dispersion wavelength, Optics, ZBLAN FIBER, law, ZBLAN, Fiber laser, Fluorine compounds, Optical fibers, OPTICAL-FIBERS, Chalcogenide glass fibers, business.industry, Anomalous dispersion, Microstructured optical fiber, Atomic and Molecular Physics, and Optics, Supercontinuum, Fibers, LIGHT, chemistry, Thulium, IR, OPTICS, Fluoride fibers, business, Scandium compounds, Chalcogenide fibers, Chalcogenides, Photonic-crystal fiber
Abstract

We theoretically demonstrate a novel approach for generating Mid-InfraRed SuperContinuum (MIR SC) by using concatenated fluoride and chalcogenide glass fibers pumped with a standard pulsed Thulium (Tm) laser (TFWHM=3.5ps, P0=20kW, νR=30MHz, and Pavg=2W). The fluoride fiber SC is generated in 10m of ZBLAN spanning the 0.9–4.1μm SC at the −30dB level. The ZBLAN fiber SC is then coupled into 10cm of As2Se3 chalcogenide Microstructured Optical Fiber (MOF) designed to have a zero-dispersion wavelength (λZDW) significantly below the 4.1μm InfraRed (IR) edge of the ZBLAN fiber SC, here 3.55μm. This allows the MIR solitons in the ZBLAN fiber SC to couple into anomalous dispersion in the chalcogenide fiber and further redshift out to the fiber loss edge at around 9μm. The final 0.9–9μm SC covers over 3 octaves in the MIR with around 15mW of power converted into the 6–9μm range.

Published
2014
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4. Linewidth-narrowing and intensity noise reduction of the 2nd order Stokes component of a low threshold Brillouin laser made of Ge10As22Se68 chalcogenide fiber

Author

Perrine Toupin, Johann Troles, David Mechin, Yohann Léguillon, Laurent Brilland, Denis Tregoat, Kenny Hey Tow, Pascal Besnard, and Schadrac Fresnel

Subjects
Materials science, Chalcogenide, business.industry, Noise reduction, Physics::Optics, 02 engineering and technology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, law.invention, 010309 optics, Brillouin zone, chemistry.chemical_compound, Laser linewidth, 020210 optoelectronics & photonics, Optics, chemistry, law, Fiber laser, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Fiber, business, Lasing threshold
Abstract

A compact second-order Stokes Brillouin fiber laser made of microstructured chalcogenide fiber is reported for the first time. This laser required very low pump power for Stokes conversion: 6 mW for first order lasing and only 30 mW for second order lasing with nonresonant pumping. We also show linewidth-narrowing as well as intensity noise reduction for both the 1st and 2nd order Stokes component when compared to that of the pump source.

Published
2012

5. Experimental realization of a mode-locked parabolic Raman fiber oscillator

Author

David Mechin, Vladimir Kruglov, Claude Aguergaray, and John D. Harvey

Subjects
Optics, Active laser medium, Materials science, business.industry, Pulse compression, Wavelength-division multiplexing, Fiber laser, Chirp, business, Self-phase modulation, Graded-index fiber, Pulse shaping, Atomic and Molecular Physics, and Optics
Abstract

We report here the first demonstration of a mode-locked fiber laser delivering parabolic pulses (similaritons) at 1534 nm. The use of a Raman-based gain medium potentially allows its implementation at any wavelength. The 22nJ output similariton pulses have a true parabolic shape both in the time and spectral domains and a linear chirp. Linear recompression close to Fourier limit is demonstrated allowing us to obtain 6 ps compressed pulses with a compression factor of 75.

Published
2010

6. Self-similar solutions of the generalized Schrödinger equation with distributed coefficients

Author

Vladimir Kruglov, David Mechin, and John D. Harvey

Subjects
Physics, Computer simulation, business.industry, Attenuation, Atomic and Molecular Physics, and Optics, Schrödinger equation, Pulse (physics), symbols.namesake, Optics, Pulse compression, Dispersion (optics), symbols, business, Ultrashort pulse, Bandwidth-limited pulse
Abstract

We present approximate but nevertheless highly accurate self-similar solutions to the generalized linear Schrodinger Equation appropriate to the description of pulse propagation in an optical fibre under the influence of distributed dispersion and gain or attenuation. These new similariton solutions apply for any shape of linearly chirped pulse for any dispersion and gain profiles and are indistinguishable from numerically generated solutions in the majority of practical applications.

Published
2009

7. Temporal evolution and correlation between cooperative luminescence and photodarkening in ytterbium doped silica fibers

Author

Achille Monteville, Denis Tregoat, Stefano Taccheo, David Landais, Hrvoje Gebavi, Olivier Le Goffic, Benoit Cadier, Thierry Robin, Daniel Milanese, and David Mechin

Subjects
Ytterbium, Luminescence, Materials science, lasers, fiber, rare-earth-doped materials, photoionization, ytterbium, Statistics as Topic, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, Absorption, Ion, 010309 optics, Optics, 0103 physical sciences, photodarkening, Yb-doped fibres, cooperative luminescence, Fiber Optic Technology, Absorption (electromagnetic radiation), Dopant, business.industry, Doping, Silicon Dioxide, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, chemistry, Attenuation coefficient, Luminescent Measurements, Photodarkening, 0210 nano-technology, business
Abstract

The present work describes photodarkening from the viewpoint of cooperative luminescence. The temporal evolution of both effects was measured simultaneously by means of ytterbium doped aluminosilicate fibers for concentrations up to 1.8 wt% Yb3+. The quadratic dependence of photodarkening and cooperative luminescence versus dopant concentration was observed. The change in the photodarkening and cooperative luminescence mutual dynamics for highly and low doped fibers is ascribed to a different ion number which forms the cluster. Cooperative luminescence is proved to be a natural probe for photodarkening since it provides new pieces of information and contributes to the photodarkening mechanism description.

Published
2011
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8. Concentration dependence and self-similarity of photodarkening losses induced in Yb-doped fibers by comparable excitation

Author

David Mechin, Olivier Le Goffic, Benoit Cadier, Stefano Taccheo, David Landais, Hrvoje Gebavi, Achille Monteville, Thierry Robin, Daniel Milanese, Denis Tregoat, and Tim Durrant

Subjects
Ytterbium, Optics and Photonics, Optical fiber, Materials science, Infrared Rays, optical fibres, Rare-earth-doped materials, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, Fluorescence, fiber characterization, rare-earth-doped material, lasers, fiber, law.invention, 010309 optics, Fiber characterization, Optics, law, Fiber laser, 0103 physical sciences, Figure of merit, Amplifiers, Electronic, business.industry, Lasers, Equipment Design, 021001 nanoscience & nanotechnology, Laser, Atomic and Molecular Physics, and Optics, photodarkening, Yb, chemistry, Excited state, Photodarkening, 0210 nano-technology, business, Excitation
Abstract

We report on an extensive investigation of photodarkening in Yb-doped silica fibers. A set of similar fibers, covering a large Yb concentration range, was made so as to compare the photodarkening induced losses. Careful measurements were made to ensure equal and uniform inversion for all the tested fibers. The results show that, with the specific set-up, the stretching parameter obtained through fitting has a very limited variation. This gives more meaning to the fitting parameters. Results tend to indicate a square law dependence of the concentration of excited ions on the final saturated loss. We also demonstrate self-similarity of loss evolution when experimental curves are simply normalized to fitting parameters. This evidence of self-similarity also supports the possibility of introducing a preliminary figure of merit for Yb-doped fiber. This will allow the impact of photodarkening on laser/amplifier devices to be evaluated.

Published
2011
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9. Low loss microstructured chalcogenide fibers for large non linear effects at 1995 nm

Author

Guillaume Canat, Laurent Calvez, Thierry Chartier, Quentin Coulombier, M. Duhant, Frédéric Smektala, M. El Amraoui, Gilles Renversez, W. Renard, Perrine Toupin, David Mechin, Johann Troles, Jean-Luc Adam, Laurent Brilland, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-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), ONERA - The French Aerospace Lab [Palaiseau], ONERA-Université Paris Saclay (COmUE), ATHENA (ATHENA), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), 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, Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales (PERFOS), association PERFOS, Institut des Sciences Chimiques de Rennes ( ISCR ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Ecole Nationale Supérieure de Chimie de Rennes-Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), ONERA - The French Aerospace Lab ( Palaiseau ), ONERA, ATHENA ( ATHENA ), Institut FRESNEL ( FRESNEL ), Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ) -Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Fonctions Optiques pour les Technologies de l'informatiON ( FOTON ), Télécom Bretagne-École Nationale Supérieure des Sciences Appliquées et de Technologie ( ENSSAT ) -Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales ( PERFOS ), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), 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, Optical fiber, Chalcogenide, 02 engineering and technology, 01 natural sciences, OCIS Codes : 060.2270, 060.2390, 060.4370, 160.2750, 060.4005, law.invention, 010309 optics, chemistry.chemical_compound, symbols.namesake, Optics, Stack (abstract data type), law, 0103 physical sciences, Fiber Optic Technology, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, Equipment Design, [CHIM.MATE]Chemical Sciences/Material chemistry, Microstructured optical fiber, 021001 nanoscience & nanotechnology, Casting, Atomic and Molecular Physics, and Optics, Equipment Failure Analysis, Core (optical fiber), Nonlinear Dynamics, chemistry, [ CHIM.MATE ] Chemical Sciences/Material chemistry, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, symbols, Chalcogens, [ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photonic, Glass, 0210 nano-technology, business, Raman scattering, Photonic-crystal fiber
Abstract

International audience; Microstructured optical fibers (MOFs) are traditionally prepared using the stack and draw technique. In order to avoid the interfaces problems observed in chalcogenide glasses, we have developed a new casting method to prepare the chalcogenide preform. This method allows to reach optical losses around 0.4 dB/m at 1.55 µm and less than 0.05 dB/m in the mid IR. Various As(38)Se(62) chalcogenide microstructured fibers have been prepared in order to combine large non linear index of these glasses with the mode control offered by MOF structures. Small core fibers have been drawn to enhance the non linearities. In one of these, three Stokes order have been generated by Raman scattering in a suspended core MOF pumped at 1995 nm.

Published
2010
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10. Casting method for producing low-loss chalcogenide microstructured optical fibers

Author

Frédéric Smektala, Gilles Renversez, Thierry Chartier, Johann Troles, Patrick Houizot, Achille Monteville, David Mechin, Thierry Pain, Laurent Brilland, Jean-Christophe Sangleboeuf, Thanh Nam Nguyen, Quentin Coulombier, Hervé Orain, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-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), Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales (Perfos), association PERFOS, 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, Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), LAboratoire de Recherche en Mécanique Appliquée (LARMAUR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Chimiques de Rennes ( ISCR ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Ecole Nationale Supérieure de Chimie de Rennes-Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Plate-Forme d'Etudes et de Recherche sur les Fibres Optiques Spéciales ( Perfos ), Fonctions Optiques pour les Technologies de l'informatiON ( FOTON ), Télécom Bretagne-École Nationale Supérieure des Sciences Appliquées et de Technologie ( ENSSAT ) -Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Institut FRESNEL ( FRESNEL ), Aix Marseille Université ( AMU ) -Ecole Centrale de Marseille ( ECM ) -Centre National de la Recherche Scientifique ( CNRS ), LAboratoire de Recherche en Mécanique Appliquée ( LARMAUR ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), and Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)

Subjects
All-silica fiber, Optical fiber, Materials science, Chalcogenide glass, 02 engineering and technology, 01 natural sciences, law.invention, 010309 optics, Optics, law, 0103 physical sciences, Composite material, Plastic optical fiber, OCIS: 060.2390, 190.4370, 060.5295, business.industry, Plastic-clad silica fiber, fungi, Microstructured optical fiber, 021001 nanoscience & nanotechnology, Atomic and Molecular Physics, and Optics, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [ SPI.OPTI ] Engineering Sciences [physics]/Optics / Photonic, 0210 nano-technology, business, Hard-clad silica optical fiber, Photonic-crystal fiber
Abstract

Topic: Fiber Optics and Optical Communications; International audience; We report significant advances in the fabrication of low loss chalcogenide microstructured optical fiber (MOF). This new method, consisting in molding the glass in a silica cast made of capillaries and capillary guides, allows the development of various designs of fibers, such as suspended core, large core or small core MOFs. After removing the cast in a hydrofluoric acid bath, the preform is drawn and the design is controlled using a system applying differential pressure in the holes. Fiber losses, which are the lowest recorded so far for selenium based MOFs, are equal to the material losses, meaning that the process has no effect on the glass quality.

Published
2010
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11. 180-nm wavelength conversion based on Bragg scattering in an optical fiber

Author

Colin J. McKinstrie, David Mechin, John D. Harvey, and Richard Provo

Subjects
Materials science, Optical fiber, business.industry, Physics::Optics, Bragg's law, Graded-index fiber, Atomic and Molecular Physics, and Optics, law.invention, symbols.namesake, Optics, Zero-dispersion wavelength, law, Fiber optic sensor, Brillouin scattering, symbols, Optoelectronics, Dispersion-shifted fiber, business, Raman scattering
Abstract

Efficient, wideband and tunable optical wavelength conversion over 180 nm by four-wave mixing (Bragg scattering) in a fiber is demonstrated experimentally. This process has the potential to translate optical data (states of light) without the noise pollution associated with parametric amplification and spontaneous Raman scattering.

Published
2006
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