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12 results on '"Benabid, F."'

1. Ultra-low transmission loss (7.7 dB/km at 750 nm) inhibited-coupling guiding hollow-core photonic crystal fibers with a single ring of tubular lattice cladding

Author

Debord, B., Amsanpally, A., Chafer, M., Baz, A., Maurel, M., Blondy, J. M, Hugonnot, E., Scol, F., Vincetti, L., Gerome, F., Benabid, F., GLOphotonics S.A.S., Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, FOS: Physical sciences, ComputingMilieux_MISCELLANEOUS, Optics (physics.optics), Physics - Optics
Abstract

The advent of photonic bandgap (PBG) guiding hollow- core photonic crystal fiber (HC-PCF) sparked the hope of guiding light with attenuation below the fundamental silica Rayleigh scattering limit (SRSL) of conventional step-index fibers. Unfortunately, the combination of the strong core-cladding optical-overlap, the surface roughness at the silica cladding struts and the presence of interface-modes limited the lowest reported transmission-loss to 1.2 dB/km at 1550 nm. This hope is recently revived by the introduction of hypocycloid core- contour (i.e. negative curvature) in inhibited-coupling (IC) guiding HC-PCF, and the reduction of their confinement loss to a level that makes them serious contenders for light transmission below the SRSL in UV- VIS-NIR spectral range. Here, we report on several IC guiding HC-PCFs with a hypocycloid core-contour and a cladding structure made of a single ring from a tubular lattice. The fibers guide in the UV-VIS and NIR, and among which we list one with a record transmission loss of 7.7 dB/km at ~750 nm (only a factor ~2 above the SRSL), and a second with an ultra-broad fundamental-band with loss in the range of 10-20 dB/km spanning from 600 to 1200 nm. Both fibers present near-single mode guidance and very low bend loss sensitivity. The results show that the limit in the transmission is set by confinement loss for wavelengths longer than ~1 {\mu}m and by surface- roughness for shorter wavelengths, thus indicating that transmission loss well below the SRSL in the visible is possible with a surface roughness reduction and would open the possibility of the first UV low-loss light- guidance.

Published
2017

2. Kagome-fiber-based pulse compression of mid- infrared picosecond pulses from a Ho:YLF amplifier

Author

Murari, Krishna, Stein, G. J., Cankaya, H., Debord, B., Gérôme, F., Cirmi, G., Mücke, O. D., Li, Peng, Ruehl, A., Hartl, I., Hong, K.-H., Benabid, F., Kärtner, F. X., Deutsches Elektronen-Synchrotron (DESY), Centre for Free Electron Laser Science (CFEL), Massachusetts Institute of Technology (MIT), Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ddc:530, ComputingMilieux_MISCELLANEOUS
Abstract

Optica 3(8), 816 - 822(2016). doi:10.1364/OPTICA.3.000816, Over the last decade, the development of ultrafast laser pulses in the mid-infrared (MIR) region has led to important breakthroughs in attosecond science and strong-field physics. However, as most such broadband MIR laser sources are near-IR pumped, the generation of high-intensity, long-wavelength MIR pulses is still a challenge, especially starting from picosecond pulses. Here we report, both experimentally and numerically, nonlinear pulse compression of sub-millijoule picosecond pulses down to sub-300 fs at 2050 nm wavelength in gas-filled Kagome-type hollow-core photonic crystal fibers for driving MIR optical parametric amplifiers. The pump laser is comprised of a compact fiber laser-seeded 2 μm chirped pulse amplification system based on a Ho:YLF crystal at 1 kHz repetition rate. Spectral broadening is studied for different experimental conditions with variations of gas pressure and incident pulse energies. The spectrally broadened 1.8 ps pulses with a Fourier-limited duration of 250 fs are compressed using an external prism-based compressor down to 285 fs and output energy of 125 μJ., Published by OSA, Washington, DC

Published
2016

3. SEA-SPIDER apparatus for sub-cycle pulse characterization in the Mid-IR

Author

Fan, G., Balciunas, T., Fourcade-Dutin, C., Stefan Haessler, Voronin, A. A., Zheltikov, A. M., Gérôme, F., Baltuska, A., Benabid, F., Witting, T., Vienna University of Technology (TU Wien), PHOTONIQUE (XLIM-PHOTONIQUE), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Imperial College London, Lomonosov Moscow State University (MSU), and Texas A&M University [College Station]

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

4. High-power pulse compression of modelocked thin-disk lasers using Kagome-type HC-PCF: low-noise source for HHG

Author

Emaury, F., Diebold, A., Debord, B., Gerome, F., Saraceno, C. J., Thomas Südmeyer, Benabid, F., Keller, U., Institute of Quantum Electronics, Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Institute of Quantum Electronics [ETH Zürich] (IQE), Department of Physics [ETH Zürich] (D-PHYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Laboratoire temps-fréquence (LTF - UNINE), Université de Neuchâtel (UNINE), and PHOTONIQUE (XLIM-PHOTONIQUE)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

5. Progress towards atomic vapor photonic microcells: Coherence and polarization relaxation measurements in coated and uncoated HC-PCF

Author

Bradley, Thomas D., Mc Ferran, J.J., Jouin, Jenny, Ilinova, Ekaterina, Thomas, Philippe, Benabid, F., PHOTONIQUE (XLIM-PHOTONIQUE), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Axe 3 : organisation structurale multiéchelle des matériaux (SPCTS-AXE3), Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), T.D. BRADLEY, J.J. McFERRAN, J. JOUIN, E. ILINOVA, P. THOMAS, F. BENABID, and Bathias, Pamela

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience; We report a comparative study on dephasing mechanisms between inner core coated and uncoated sections of the same Kagome hypocycloid-shaped core hollow core photonic crystal fibers (HC-PCF) filled with rubidium vapor. The comparison is performed by measuring the atomic polarization relaxation and electromagnetically induced transparency (EIT) linewidth in Rb loaded polydimethylsiloxane (PDMS) inner wall coated and bare silica core Kagome HC-PCF. The measurements show a polarization relaxation time of 32 mu s in a PDMS coated Kagome HC-PCF and 24 mu s in uncoated Kagome HC-PCF. A minimum EIT linewidth of 6.2 +/- 0.8MHz is achieved in PDMS coated Kagome HC-PCF, and 8.3 +/- 0.9 MHz for the uncoated Kagome HC-PCF.

Published
2013

6. Properties of photonic band-gap mode due to a topological defect within a photonic crystal fiber cladding

Author

Humbert, Georges, Benabid, F., Roberts, P.J., Gérôme, Frédéric, Wang, Y.Y., Light, P.S., Blondy, Jean-Marc, PHOTONIQUE, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), and Lebraud, Sophie

Subjects
[SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

7. Hollow-core photonic crystal fibers for mid-infrared integrated sources

Author

Beaudou, Benoît, Couny, F., Février, Sébastien, Humbert, Georges, Gérôme, Frédéric, Benabid, F., Lebraud, Sophie, PHOTONIQUE, XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI] Engineering Sciences [physics]/Optics / Photonic, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

8. Fibres creuse à bande interdite photonique pour la génération de cascade Raman

Author

Beaudou, Benoît, Couny, F., Wang, Y.Y., Light, P., Benabid, F., PHOTONIQUE, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), and Lebraud, Sophie

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2008

9. Kagome fiber based nonlinear pulse compression of 1.8 ps to 250 fs at 2.05 ?m from Ho:YLF amplifier

Author

Murari, K., Stein, G. J., Cankaya, H., Debord, B., Gerome, F., Cirmi, G., Mucke, O. D., Li, P., Ruehl, A., Ingmar Hartl, Hong, K. -H, Benabid, F., Kartner, F. X., Deutsches Elektronen-Synchrotron (DESY), Centre for Free Electron Laser Science (CFEL), Massachusetts Institute of Technology (MIT), Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

10. 7.7 dB/km transmission loss at 750 nm inhibited-coupling guiding hollowcore photonic crystal fibers

Author

Debord, B., Amsanpally, A., Chafer, M., Baz, A., Maurel, M., Blondy, J.M., Hugonnot, E., Scol, F., Vincetti, L., Gerome, F., Benabid, F., Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), GLOphotonics S.A.S., Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA-CESTA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Department of Information Engineering [Modena], Università degli Studi di Modena e Reggio Emilia (UNIMORE), and Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia (UNIMORE)

Subjects
Fabrication, Materials science, business.industry, Band gap, Transmission loss, 02 engineering and technology, 021001 nanoscience & nanotechnology, Hypocycloid, Cladding mode, 01 natural sciences, 010309 optics, Transverse plane, Optics, Mechanics of Materials, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Electronic, Electronic, Optical and Magnetic Materials, Optical and Magnetic Materials, 0210 nano-technology, business, ComputingMilieux_MISCELLANEOUS, Photonic crystal, Photonic-crystal fiber
Abstract

Last years have seen the emergence of a new class of hollow-core photonic crystal fibers (HC-PCF) no longer relying on photonic bandgap guidance but on inhibited-coupling (IC) mechanism. The first specie of this fiber family took the form of Kagome-lattice [1]. The guiding rule for enhancement of such a guidance (minimizing the coupling between the core mode and cladding mode, i.e (φ clad |Δn 2 | φ core ) → 0) led to the introduction in 2010 of hypocycloidal (or negative curvature) core contour [2] in Kagome HC-PCFs where record loss values (8.5 dB/km at 1 μm [3]) have been demonstrated. Thanks to this design, three reasons explain the reduction of such a criterion: i) the HE 11 mode field spatial overlap with silica is reduced to the tangent sections of the inner cups of the hypocycloid contour, ii) the larger perimeter of the hypocycloid contour results in a higher azimuthal-like number in the silica core-surround modes and hence, stronger transverse phase-mismatch with the core mode. iii) the spatial overlap between the core-mode with connecting nodes supporting low azimuthal number modes is strongly reduced. Recently, another hollow-core fiber design has been proposed that fully fulfils the mentioned features for IC guidance, relying on a tubular lattice with a one ring of isolated (with no connecting nodes) thin glass tubes [4]. Here, we report on the fabrication and characterization of ultra-low loss single-ring tubular lattice HC-PCFs (SR HC-PCF) guiding m the UV-VIS-NIR with absolute record loss value for HC-PCF at 750 nm with 7.7 dB/km, supplanting bandgap fiber performances in this spectral range.

11. High-performance iodine fiber frequency standard

Author

Lurie, A., Baynes, F. N., Anstie, J. D., Philip Light, Benabid, F., Stace, T. M., Luiten, A. N., The University of Western Australia (UWA), University of Bath [Bath], PHOTONIQUE (XLIM-PHOTONIQUE), XLIM (XLIM), and Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

12. Strong field applications of Gigawatt self-compressed pulses from a Kagome fiber

Author

Balciunas, T., Fan, G., Haessler, S., Fourcade-Dutin, C., Witting, T., Voronin, A. A., Aleksei Zheltikov, Frédéric, G., Paulus, G. G., Baltuska, A., Benabid, F., Vienna University of Technology (TU Wien), PHOTONIQUE (XLIM-PHOTONIQUE), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Imperial College London, Lomonosov Moscow State University (MSU), Texas A&M University [College Station], Institute of optics and quantum electronics, and Friedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]

Subjects
010309 optics, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, 010306 general physics, 01 natural sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

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