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Since their inception, about 20 years ago, hollow-core photonic crystal fiber and its gas-filled form are now establishing themselves both as a platform in advancing our knowledge on how light is confined and guided in microstructured dielectric optical waveguides, and a remarkable enabler in a large and diverse range of fields. The latter spans from nonlinear and coherent optics, atom optics and laser metrology, quantum information to high optical field physics and plasma physics. Here, we give a historical account of the major seminal works, we review the physics principles underlying the different optical guidance mechanisms that have emerged and how they have been used as design tools to set the current state-of-the-art in the transmission performance of such fibers. In a second part of this review, we give a nonexhaustive, yet representative, list of the different applications where gas-filled hollow-core photonic crystal fiber played a transformative role, and how the achieved results are leading to the emergence of a new field, which could be coined “Gas photonics”. We particularly stress on the synergetic interplay between glass, gas, and light in founding this new fiber science and technology.
Benoît Debord; Foued Amrani; Luca Vincetti; Frédéric Gérôme; Fetah Benabid. Hollow-Core Fiber Technology: The Rising of “Gas Photonics”. Fibers 2019, 7, 16 .
AMA StyleBenoît Debord, Foued Amrani, Luca Vincetti, Frédéric Gérôme, Fetah Benabid. Hollow-Core Fiber Technology: The Rising of “Gas Photonics”. Fibers. 2019; 7 (2):16.
Chicago/Turabian StyleBenoît Debord; Foued Amrani; Luca Vincetti; Frédéric Gérôme; Fetah Benabid. 2019. "Hollow-Core Fiber Technology: The Rising of “Gas Photonics”." Fibers 7, no. 2: 16.
Martin Cordier; Adeline Orieux; Benoit Debord; Frédéric Gérome; Alexandre Gorse; Matthieu Chafer; Eleni Diamanti; Philippe Delaye; Fetah Benabid; Isabelle Zaquine. Active engineering of four-wave mixing spectral entanglement in hollow-core fibers. 2018, 1 .
AMA StyleMartin Cordier, Adeline Orieux, Benoit Debord, Frédéric Gérome, Alexandre Gorse, Matthieu Chafer, Eleni Diamanti, Philippe Delaye, Fetah Benabid, Isabelle Zaquine. Active engineering of four-wave mixing spectral entanglement in hollow-core fibers. . 2018; ():1.
Chicago/Turabian StyleMartin Cordier; Adeline Orieux; Benoit Debord; Frédéric Gérome; Alexandre Gorse; Matthieu Chafer; Eleni Diamanti; Philippe Delaye; Fetah Benabid; Isabelle Zaquine. 2018. "Active engineering of four-wave mixing spectral entanglement in hollow-core fibers." , no. : 1.
Jonas H. Osorio; Matthieu Chafer; Benoit Debord; Fabio Giovanardi; Martin Cordier; Martin Maurel; Frederic Delahaye; Foued Amrani; Luca Vincetti; Frederic Gerome; Fetah Benabid. Tailoring modal properties of inhibited-coupling guiding fibers by cladding modification. 2018, 1 .
AMA StyleJonas H. Osorio, Matthieu Chafer, Benoit Debord, Fabio Giovanardi, Martin Cordier, Martin Maurel, Frederic Delahaye, Foued Amrani, Luca Vincetti, Frederic Gerome, Fetah Benabid. Tailoring modal properties of inhibited-coupling guiding fibers by cladding modification. . 2018; ():1.
Chicago/Turabian StyleJonas H. Osorio; Matthieu Chafer; Benoit Debord; Fabio Giovanardi; Martin Cordier; Martin Maurel; Frederic Delahaye; Foued Amrani; Luca Vincetti; Frederic Gerome; Fetah Benabid. 2018. "Tailoring modal properties of inhibited-coupling guiding fibers by cladding modification." , no. : 1.
We report on the development of hypocycloid core-contour inhibited-coupling (IC) Kagome hollow-core photonic crystal fibers (HC-PCFs) with record transmission loss and spectral coverage that include the common industrial laser wavelengths. Using the scaling of the confinement loss with the core-contour negative curvature and the silica strut thickness, we fabricated an IC Kagome HC-PCF for Yb and Nd:Yag laser guidance with record loss level of 8.5 dB/km associated with a 225-nm-wide 3-dB bandwidth. A second HC-PCF is fabricated with reduced silica strut thickness while keeping the hypocycloid core contour. It exhibits a fundamental transmission window spanning down to the Ti:Sa spectral range and a loss figure of 30 dB/km at 750 nm. The fibers’ modal properties and bending sensitivity show these HC-PCFs to be ideal for ultralow-loss, flexible, and robust laser beam delivery.
Martin Maurel; Matthieu Chafer; Abhilash Amsanpally; Muhammad Adnan; Foued Amrani; Benoit Debord; Luca Vincetti; Frédéric Gérôme; Fetah Benabid. Optimized inhibited-coupling Kagome fibers at Yb-Nd:Yag (85 dB/km) and Ti:Sa (30 dB/km) ranges. Optics Letters 2018, 43, 1598 -1601.
AMA StyleMartin Maurel, Matthieu Chafer, Abhilash Amsanpally, Muhammad Adnan, Foued Amrani, Benoit Debord, Luca Vincetti, Frédéric Gérôme, Fetah Benabid. Optimized inhibited-coupling Kagome fibers at Yb-Nd:Yag (85 dB/km) and Ti:Sa (30 dB/km) ranges. Optics Letters. 2018; 43 (7):1598-1601.
Chicago/Turabian StyleMartin Maurel; Matthieu Chafer; Abhilash Amsanpally; Muhammad Adnan; Foued Amrani; Benoit Debord; Luca Vincetti; Frédéric Gérôme; Fetah Benabid. 2018. "Optimized inhibited-coupling Kagome fibers at Yb-Nd:Yag (85 dB/km) and Ti:Sa (30 dB/km) ranges." Optics Letters 43, no. 7: 1598-1601.
The effect of gas pressure, fiber length, and optical pump power on an acetylene mid-infrared hollow-core optical fiber gas laser (HOFGLAS) is experimentally determined in order to scale the laser to higher powers. The absorbed optical power and threshold power are measured for different pressures providing an optimum pressure for a given fiber length. We observe a linear dependence of both absorbed pump energy and lasing threshold for the acetylene HOFGLAS, while maintaining a good mode quality with an M-squared of 1.15. The threshold and mode behavior are encouraging for scaling to higher pressures and pump powers.
H. W. Kushan Weerasinghe; Manasadevi P. Thirugnanasambandam; Benoit Debord; Frederic Gerome; Matthieu Chafer; Fetah Benabid; Brian R. Washburn; Kristan Corwin; Neda Dadashzadeh. Toward power scaling in an acetylene mid-infrared hollow-core optical fiber gas laser: effects of pressure, fiber length, and pump power. Fiber Lasers XV: Technology and Systems 2018, 10512, 105121O .
AMA StyleH. W. Kushan Weerasinghe, Manasadevi P. Thirugnanasambandam, Benoit Debord, Frederic Gerome, Matthieu Chafer, Fetah Benabid, Brian R. Washburn, Kristan Corwin, Neda Dadashzadeh. Toward power scaling in an acetylene mid-infrared hollow-core optical fiber gas laser: effects of pressure, fiber length, and pump power. Fiber Lasers XV: Technology and Systems. 2018; 10512 ():105121O.
Chicago/Turabian StyleH. W. Kushan Weerasinghe; Manasadevi P. Thirugnanasambandam; Benoit Debord; Frederic Gerome; Matthieu Chafer; Fetah Benabid; Brian R. Washburn; Kristan Corwin; Neda Dadashzadeh. 2018. "Toward power scaling in an acetylene mid-infrared hollow-core optical fiber gas laser: effects of pressure, fiber length, and pump power." Fiber Lasers XV: Technology and Systems 10512, no. : 105121O.
We report on an ultra-low loss Hollow-Core Photonic Crystal Fiber (HC-PCF) beam delivery system (GLO-GreenBDS) for high power ultra-short pulse lasers operating in the green spectral range (including 515 nm and 532 nm). The GLOBDS- Green combines ease-of-use, high laser-coupling efficiency, robustness and industrial compatible cabling. It comprises a pre-aligned laser-injection head, a sheath-cable protected HC-PCF and a modular fiber-output head. It enables fiber-core gas loading and evacuation in a hermetic fashion. A 5 m long GLO-BDS were demonstrated for a green short pulse laser with a transmission coefficient larger than 80%, and a laser output profile close to single-mode (M2 <1.3).
Matthieu Chafer; M. Maurel; Fetah Benabid; Alexandre Gorse; Benoit Beaudou; Quentin Lekiefs; Benoit Debord; Frederic Gerome. Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers. Components and Packaging for Laser Systems IV 2018, 10513, 1051304 .
AMA StyleMatthieu Chafer, M. Maurel, Fetah Benabid, Alexandre Gorse, Benoit Beaudou, Quentin Lekiefs, Benoit Debord, Frederic Gerome. Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers. Components and Packaging for Laser Systems IV. 2018; 10513 ():1051304.
Chicago/Turabian StyleMatthieu Chafer; M. Maurel; Fetah Benabid; Alexandre Gorse; Benoit Beaudou; Quentin Lekiefs; Benoit Debord; Frederic Gerome. 2018. "Inhibited-coupling HC-PCF based beam-delivery-system for high power green industrial lasers." Components and Packaging for Laser Systems IV 10513, no. : 1051304.
We report on the design and fabrication of inhibited-coupling guiding hollow-core photonic crystal fiber with a transmission band optimized for low loss guidance around 2 μm. Two fibers design based on a Kagome-lattice cladding have been studied to demonstrate a minimum loss figure of 25 dB/km at 2 μm associated to an ultra-broad transmission band spanning from the visible to our detection limit of 3.4 μm. Such fibers could be an excellent tool to deliver and compress ultra-short pulse laser systems, especially for the emerging 2-3 μm spectral region.
Martin Maurel; Matthieu Chafer; Frederic Delahaye; Foued Amrani; Benoit Debord; Frederic Gerome; Fetah Benabid. 2-µm wavelength-range low-loss inhibited-coupling hollow-core PCF. Components and Packaging for Laser Systems IV 2018, 10513, 1051305 .
AMA StyleMartin Maurel, Matthieu Chafer, Frederic Delahaye, Foued Amrani, Benoit Debord, Frederic Gerome, Fetah Benabid. 2-µm wavelength-range low-loss inhibited-coupling hollow-core PCF. Components and Packaging for Laser Systems IV. 2018; 10513 ():1051305.
Chicago/Turabian StyleMartin Maurel; Matthieu Chafer; Frederic Delahaye; Foued Amrani; Benoit Debord; Frederic Gerome; Fetah Benabid. 2018. "2-µm wavelength-range low-loss inhibited-coupling hollow-core PCF." Components and Packaging for Laser Systems IV 10513, no. : 1051305.
Min Châu Phan Huy; Philippe Delaye; Gilles Pauliat; Nicolas Dubreuil; Frédéric Gérôme; Benoît Debord; Fetah Benabid; Sylvie Lebrun. Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters. Journal of the European Optical Society-Rapid Publications 2017, 13, 1 .
AMA StyleMin Châu Phan Huy, Philippe Delaye, Gilles Pauliat, Nicolas Dubreuil, Frédéric Gérôme, Benoît Debord, Fetah Benabid, Sylvie Lebrun. Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters. Journal of the European Optical Society-Rapid Publications. 2017; 13 (1):1.
Chicago/Turabian StyleMin Châu Phan Huy; Philippe Delaye; Gilles Pauliat; Nicolas Dubreuil; Frédéric Gérôme; Benoît Debord; Fetah Benabid; Sylvie Lebrun. 2017. "Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters." Journal of the European Optical Society-Rapid Publications 13, no. 1: 1.
In this paper, after reviewing results in the emerging plasma photonics field, we report on a strong plasma emission in the Deep-UV (DUV) range using gas mixture for development of a tunable and miniaturized UV radiation source using microwave-driven plasma-core photonic crystal fiber. Several spectral lines in DUV were produced by Ar-N 2 -O 2 plasmas and tailored by simply varying the gas ratio of this gas mixture. In addition, a planar technology was used to develop a special ring excitator for compact solution to sustain efficiently such plasmas with microwave power as low as the Watt-level.
Foued Amrani; Frederic Delahaye; Benoit Debord; Luis Lemos Alves; Frederic Gerome; Fetah Benabid. Deep-UV plasma emission in hollow-core photonic crystal fiber. 2017 19th International Conference on Transparent Optical Networks (ICTON) 2017, 1 -4.
AMA StyleFoued Amrani, Frederic Delahaye, Benoit Debord, Luis Lemos Alves, Frederic Gerome, Fetah Benabid. Deep-UV plasma emission in hollow-core photonic crystal fiber. 2017 19th International Conference on Transparent Optical Networks (ICTON). 2017; ():1-4.
Chicago/Turabian StyleFoued Amrani; Frederic Delahaye; Benoit Debord; Luis Lemos Alves; Frederic Gerome; Fetah Benabid. 2017. "Deep-UV plasma emission in hollow-core photonic crystal fiber." 2017 19th International Conference on Transparent Optical Networks (ICTON) , no. : 1-4.
We measure the light backscattered by resonant optical cavities based on two types of hollow-core photonic bandgap fibers, namely, 7-cell and 19-cell fibers. The measurement of the intensity backscattered by the cavity at resonance permits to deduce the value of the fiber backscattering coefficient. We find backscattering coefficients of the order of 2.0 × 10-6 and 1.0 × 10-6 m-1 for the 7-cell and 19-cell fibers, respectively, two orders of magnitude larger than the one for standard solid-core single-mode fiber.
Alexia Ravaille; Gilles Feugnet; Ihsan Fsaifes; Assaad Baz; George Humbert; Fetah Benabid; Benoit Debord; Fabien Bretenaker; Frederic Gerome. In-Situ Measurement of Backscattering in Hollow-Core Fiber Based Resonant Cavities. IEEE Photonics Journal 2017, 9, 1 -7.
AMA StyleAlexia Ravaille, Gilles Feugnet, Ihsan Fsaifes, Assaad Baz, George Humbert, Fetah Benabid, Benoit Debord, Fabien Bretenaker, Frederic Gerome. In-Situ Measurement of Backscattering in Hollow-Core Fiber Based Resonant Cavities. IEEE Photonics Journal. 2017; 9 (4):1-7.
Chicago/Turabian StyleAlexia Ravaille; Gilles Feugnet; Ihsan Fsaifes; Assaad Baz; George Humbert; Fetah Benabid; Benoit Debord; Fabien Bretenaker; Frederic Gerome. 2017. "In-Situ Measurement of Backscattering in Hollow-Core Fiber Based Resonant Cavities." IEEE Photonics Journal 9, no. 4: 1-7.
We investigate the mid-IR laser beam characteristics from an acetylene-filled hollow-core optical fiber gas laser (HOFGLAS) system. The laser exhibits near-diffraction limited beam quality in the 3 μm region with M2 = 1.15 ± 0.02 measured at high pulse energy, and the highest mid-IR pulse energy from a HOFGLAS system of 1.4 μJ is reported. Furthermore, the effects of output saturation with pump pulse energy are reduced through the use of longer fibers with low loss. Finally, the slope efficiency is shown to be nearly independent of gas pressure over a wide range, which is encouraging for further output power increase.
Neda Dadashzadeh; Manasadevi P. Thirugnanasambandam; H. W. Kushan Weerasinghe; Benoit Debord; Matthieu Chafer; Frederic Gerome; Fetah Benabid; Brian R. Washburn; Kristan L. Corwin. Near diffraction-limited performance of an OPA pumped acetylene-filled hollow-core fiber laser in the mid-IR. Optics Express 2017, 25, 13351 .
AMA StyleNeda Dadashzadeh, Manasadevi P. Thirugnanasambandam, H. W. Kushan Weerasinghe, Benoit Debord, Matthieu Chafer, Frederic Gerome, Fetah Benabid, Brian R. Washburn, Kristan L. Corwin. Near diffraction-limited performance of an OPA pumped acetylene-filled hollow-core fiber laser in the mid-IR. Optics Express. 2017; 25 (12):13351.
Chicago/Turabian StyleNeda Dadashzadeh; Manasadevi P. Thirugnanasambandam; H. W. Kushan Weerasinghe; Benoit Debord; Matthieu Chafer; Frederic Gerome; Fetah Benabid; Brian R. Washburn; Kristan L. Corwin. 2017. "Near diffraction-limited performance of an OPA pumped acetylene-filled hollow-core fiber laser in the mid-IR." Optics Express 25, no. 12: 13351.
Summary form only given. Raman wavelength converters based on hollow core microstructured fibres filled with gases or liquids have been widely studied in the last few decades [1, 2]. In these converters the wavelength of a laser pump beam is red-shifted by stimulated Raman scattering in the material filling the core of the fibre, giving rise to new discrete wavelengths that can be used in many domains of applications (biophotonics, environment ...). The possibility to strongly confine the pump light over long distances is an asset to get a high conversion efficiency. However if no particular care is taken unwanted non linear effects can occur at the expense of the stimulated forward Raman scattering. These effects are the Raman and Brillouin back-scatterings. In this work we are interested in the optimization of liquid-core Raman converters operating with pulses of a few nanoseconds or less. In these temporal regimes competition between the abovementioned effects are known to be very strong. We validate here a solution to minimize Raman and Brillouin back-scatterings by an appropriate choice of the fibre length. The effective length of interaction L eff in the backward direction is estimated to be cΔt / 2n, where At is the pulse width duration and n the refractive index. In the forward direction, as the dispersion is negligible, this effective length is the length of the fibre L. In liquids, as backward and forward Raman gains are nearly the same, L has just to be slightly higher than L eff to avoid Raman back-scattering. In most liquids and for long pulses Brillouin gain is much higher than Raman gain (typically one order of magnitude). To decrease Brillouin scattering L has to be subsequently higher than Leff. We demonstrate experimentally these trends by building two Raman converters differing only by their lengths. Our initial aim was to realize a Raman converter emitting in the near IR range. The pump source is a microlaser at 532 nm delivering 900 ps pulses at a repetition rate of 4.5 kHz. We choose ethanol as the Raman liquid. When pumped at 532 nm, the first Stokes order of ethanol is at 630 nm and the second Stokes order is at 772 nm, i.e the near IR wavelength we want to generate. A Kagome fibre was used to realize the two converters. When empty this fibre guides in the near IR range over a 1 μm wide transmission band. When filled with ethanol this transmission band is blue-shifted and then covers the pump and the Stokes wavelengths. In our configuration L eff =0.1 m. The lengths of the two converters are 0.5 m and 1.5 m. The results are shown in figure 1. As expected we observed no Raman backscattering in both cases and Brillouin effect is strongly attenuated for the longer fibre. For instance at the critical point (when the output Raman Stokes energy equals the transmitted pump energy), the Brillouin energy is 66% of the forward Raman energy for the 0.5 m fibre and is only 9% for the 1.5 m fibre. As a consequence, the...
Min-Chau Phan Huy; Philippe Delaye; Gilles Pauliat; Nicolas Dubreuil; Sylvie Lebrun; Benoit Debord; Frederic Gerome; Fetah Benabid. Reduction of Brillouin scattering for the optimization of liquid-core Raman wavelength converters. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2017, 1 -1.
AMA StyleMin-Chau Phan Huy, Philippe Delaye, Gilles Pauliat, Nicolas Dubreuil, Sylvie Lebrun, Benoit Debord, Frederic Gerome, Fetah Benabid. Reduction of Brillouin scattering for the optimization of liquid-core Raman wavelength converters. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2017; ():1-1.
Chicago/Turabian StyleMin-Chau Phan Huy; Philippe Delaye; Gilles Pauliat; Nicolas Dubreuil; Sylvie Lebrun; Benoit Debord; Frederic Gerome; Fetah Benabid. 2017. "Reduction of Brillouin scattering for the optimization of liquid-core Raman wavelength converters." 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) , no. : 1-1.
Summary form only given. Recent progresses in hollow-core photonic crystal fibers (HC-PCF) renewed interest for resonant fiber optic gyroscope (R-FOG) [1]. Indeed, hollow-core fibers, where light propagates mostly in air, have the advantage of significantly reducing the Kerr effect, known as a strong limitation on the bias stability of the R-FOG [2]. However, Rayleigh backscattering is still an important source of noise as it forbids the measurements of low rotation rates ['].We report here results on the measurements of backscattering in photonic bandgap (PBG) HC-PCF based resonant cavities. The setup consists of a semi-bulk cavity as shown in Fig. 1 (a) allowing us to compare different fibers. When the laser frequency is scanned, the reflected and backscattered power measured respectively on PD1 and PD2 evolve as shown in Fig. 1 (b).
Alexia Ravaille; Gilles Feugnet; Bertrand Morbieu; Ihsan Fsaifes; Assaad Baz; Benoit Debord; Frederic Gerome; Georges Humbert; Fetah Benabid; Fabien Bretenaker. Measurement of backscattering in hollow core photonic crystal fiber based resonant cavities. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2017, 1 -1.
AMA StyleAlexia Ravaille, Gilles Feugnet, Bertrand Morbieu, Ihsan Fsaifes, Assaad Baz, Benoit Debord, Frederic Gerome, Georges Humbert, Fetah Benabid, Fabien Bretenaker. Measurement of backscattering in hollow core photonic crystal fiber based resonant cavities. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2017; ():1-1.
Chicago/Turabian StyleAlexia Ravaille; Gilles Feugnet; Bertrand Morbieu; Ihsan Fsaifes; Assaad Baz; Benoit Debord; Frederic Gerome; Georges Humbert; Fetah Benabid; Fabien Bretenaker. 2017. "Measurement of backscattering in hollow core photonic crystal fiber based resonant cavities." 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) , no. : 1-1.
There is growing interest in using Hollow-core photonic crystal fiber (HC-PCF) in atomic based laser metrology and quantum optics. Atom-filled HC-PCF represents a compact atomic vapour cell, which thanks to its long light-matter interaction distance enhances spectroscopic feature contrasts and optical nonlinearities. These advantages make atom-filled HC-PCF an outstanding candidate for numerous applications such as miniature atomic clocks, magnetometers, single photon sources, Rydberg-blockade based NOT gates, atom-light entanglement etc. Furthermore, the small geometric core size of HC-PCF (5 to 100 μm) and large inner wall surface volume enhance atom-surface effects like physicochemical processes, surface material adsorption, Van der Waals (VW) interaction and Casimir Polder forces, which play a significant role in spectroscopic features that strongly differ from the conventional macroscopic vapor cells. Here we report on experimental observation of wall surface induced sub-Doppler transparencies in Rb-filled Kagome HC-PCF, which dramatically contrast with conventional sub-Doppler transparencies generated techniques (e.g. SAS, EIT). The present transparencies are generated by using one single laser beam injected into Rb loaded Kagome HC-PCF.
Ximeng Zheng; Benoit Debord; Jenny Jouin; Philippe Thomas; Frederic Gerome; Fetah Benabid. Single laser-beam generated sub-Doppler transparencies in Rb-filled Kagome HC-PCF. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2017, 1 -1.
AMA StyleXimeng Zheng, Benoit Debord, Jenny Jouin, Philippe Thomas, Frederic Gerome, Fetah Benabid. Single laser-beam generated sub-Doppler transparencies in Rb-filled Kagome HC-PCF. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2017; ():1-1.
Chicago/Turabian StyleXimeng Zheng; Benoit Debord; Jenny Jouin; Philippe Thomas; Frederic Gerome; Fetah Benabid. 2017. "Single laser-beam generated sub-Doppler transparencies in Rb-filled Kagome HC-PCF." 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) , no. : 1-1.
Within recent years many ultra-short pulsed lasers with extremely high pulse energies as well as average powers were developed for laser material processing. To flexibly guide the beam from the laser to the workpiece hollow-core photonic crystal fibers (HC-PCF) have shown to be the best and unique choice to deliver these high peak power pulses. Also it has been reported that to largely reduce the overlap of the mode in air and the surrounding silica, inhibited coupling (IC) guiding HC-PCF is the most adequate choice [1]. In this contribution we present the influence of bendings on the ability of IC HC-PCF to maintain the incident polarization.
Christian Rohrer; Frederic Gerome; Benoit Debord; Marwan Abdou Ahmed; Thomas Graf; Fetah Benabid. Analysis of polarization maintaining behavior in inhibited coupling hollow-core photonic crystal fibers (IC HC-PCF). 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2017, 1 -1.
AMA StyleChristian Rohrer, Frederic Gerome, Benoit Debord, Marwan Abdou Ahmed, Thomas Graf, Fetah Benabid. Analysis of polarization maintaining behavior in inhibited coupling hollow-core photonic crystal fibers (IC HC-PCF). 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2017; ():1-1.
Chicago/Turabian StyleChristian Rohrer; Frederic Gerome; Benoit Debord; Marwan Abdou Ahmed; Thomas Graf; Fetah Benabid. 2017. "Analysis of polarization maintaining behavior in inhibited coupling hollow-core photonic crystal fibers (IC HC-PCF)." 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) , no. : 1-1.
Summary form only given. Atomic or molecular plasmas are an excellent media to produce a fluorescence light source emitting in the UV spectral range, which is of interest for many applications in biological, physical, chemical and other fields such as water decontamination, spectrophotometry, and photolithography. In parallel, the emergent hollow-core photonic crystal fiber (HC-PCF) technology has demonstrated its ability in micro-confining light and gases together [1]. Recently, this confinement has been extended to ionized gas with an Argon plasma that has been successfully generated inside the core of an inhibited-coupling (IC) HC-PCF with no damage to the fiber structural integrity [2]. This result opened an original platform ideal to realize very compact photonic components for DUV/UV laser systems. In this context, we report here on a broad DUV/UV emission using microwave-driven plasma-core PCF for development of such a tunable and miniaturized UV radiation source. By using a ternary gas mixture of argon, oxygen and nitrogen (Ar/O2/N2) with an adjustable gas ratio, we generated a stable micro-plasma column in IC Kagome HC-PCF over few cm length and demonstrated the emission of several fluorescence and guided lines in the 200-450 nm wavelength range. The optimum ratio of ternary gas mixture components for strongest emission in the DUV domain has been identified through systematic spectroscopic measurement campaign in HC-PCF. Figure 1 shows the transmitted spectra obtained at the output of a 19-cell core defect Kagomé HC-PCF (corresponding to 117 μm-core diameter) for various gas mixture ratios at a fixed microwave power of 35 W and a gas pressure of few mbar. Gradually, as we introduce the N2 and the O2 components (Fig. 1 (b) to (e)) to the Ar, several new lines appear due to the interaction of each molecule in the plasma ignition gas medium. From 275 nm up to 400 nm, one can observe the classical band emission of Nitrogen molecule from the Second Positive System. Then, the emission from 200 to 275 nm is assigned to the band emission of the γ system. From these results, the ternary gas mixture ratio of 90%-5%-5% is found the optimum to demonstrate the broadest emission in the DUV/UV. A simulation study was also performed in such a gas mixture, using a 0D-global model, to determine the influence of the electron density on the radiation emission [3]. In Fig. 2 the theoretical evolution of the different spectral lines intensity of the Ar-O2-N2 plasma for both gas mixtures are plotted. The result shows a good agreement with experimental ones.
Frederic Delahaye; Foued Amrani; Benoit Debord; Luis Alves; Frederic Gerome; Fetah Benabid. Deep-UV plasma emission in hollow-core photonic crystal fiber using gas mixture. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) 2017, 1 -1.
AMA StyleFrederic Delahaye, Foued Amrani, Benoit Debord, Luis Alves, Frederic Gerome, Fetah Benabid. Deep-UV plasma emission in hollow-core photonic crystal fiber using gas mixture. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 2017; ():1-1.
Chicago/Turabian StyleFrederic Delahaye; Foued Amrani; Benoit Debord; Luis Alves; Frederic Gerome; Fetah Benabid. 2017. "Deep-UV plasma emission in hollow-core photonic crystal fiber using gas mixture." 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) , no. : 1-1.
We report for the first time on tapering inhibited coupling (IC) hypocycloid-core shape Kagome hollow-core photonic crystal fibers whilst maintaining their delicate core-contour negative curvature with a down-ratio as large as 2.4. The transmission loss of down-tapered sections reaches a figure as low as 0.07 dB at 1550 nm. The tapered IC fibers are also spliced to standard SMF with a total insertion loss of 0.48 dB. These results show that all-fiber photonic microcells with the ultra-low loss hypocycloid core-contour Kagome fibers is now possible.
Ximeng Zheng; Benoît Debord; Luca Vincetti; Benoît Beaudou; Frédéric Gérôme; Fetah Benabid. Fusion splice between tapered inhibited coupling hypocycloid-core Kagome fiber and SMF. Optics Express 2016, 24, 14642 .
AMA StyleXimeng Zheng, Benoît Debord, Luca Vincetti, Benoît Beaudou, Frédéric Gérôme, Fetah Benabid. Fusion splice between tapered inhibited coupling hypocycloid-core Kagome fiber and SMF. Optics Express. 2016; 24 (13):14642.
Chicago/Turabian StyleXimeng Zheng; Benoît Debord; Luca Vincetti; Benoît Beaudou; Frédéric Gérôme; Fetah Benabid. 2016. "Fusion splice between tapered inhibited coupling hypocycloid-core Kagome fiber and SMF." Optics Express 24, no. 13: 14642.
We report on a new and highly compact scheme for the generation and sustainment of microwave-driven plasmas inside the core of an inhibited coupling Kagome hollow-core photonic crystal fiber. The microwave plasma generator consists of a split-ring resonator that efficiently couples the microwave field into the gas-filled fiber. This coupling induces the concomitant generation of a microwave surface wave at the fiber core surround and a stable plasma column confined in the fiber core. The scheme allowed the generation of several centimeters long argon microplasma columns with a very low excitation power threshold. This result represents an important step toward highly compact plasma lasers or plasma-based photonic components.
Florian Vial; Katell Gadonna; Benoît Debord; Frédéric Delahaye; Foued Amrani; Olivier Leroy; Frédéric Gérôme; Fetah Benabid. Generation of surface-wave microwave microplasmas in hollow-core photonic crystal fiber based on a split-ring resonator. Optics Letters 2016, 41, 2286 -2289.
AMA StyleFlorian Vial, Katell Gadonna, Benoît Debord, Frédéric Delahaye, Foued Amrani, Olivier Leroy, Frédéric Gérôme, Fetah Benabid. Generation of surface-wave microwave microplasmas in hollow-core photonic crystal fiber based on a split-ring resonator. Optics Letters. 2016; 41 (10):2286-2289.
Chicago/Turabian StyleFlorian Vial; Katell Gadonna; Benoît Debord; Frédéric Delahaye; Foued Amrani; Olivier Leroy; Frédéric Gérôme; Fetah Benabid. 2016. "Generation of surface-wave microwave microplasmas in hollow-core photonic crystal fiber based on a split-ring resonator." Optics Letters 41, no. 10: 2286-2289.
We build ring resonators to assess the potentialities of Kagome Hollow-Core Photonic Crystal Fibers for future applications to resonant rotation sensing. The large mode diameter of Kagome fibers permits to reduce the free space fiber-to-fiber coupling losses, leading to cavities with finesses of about 30 for a diameter equal to 15 cm. Resonance linewidths of 3.2~MHz with contrasts as large as 89\% are obtained. Comparison with 7-cell photonic band gap (PBG) fiber leads to better finesse and contrast with Kagome fiber. Resonators based on such fibers are compatible with the angular random walk required for medium to high performance rotation sensing. The small amount of light propagating in silica should also permit to further reduce the Kerr-induced non-reciprocity by at least three orders of magnitudes in 7-cell Kagome fiber compared with 7-cell PBG fiber.
Ihsan Fsaifes; Gilles Feugnet; Alexia Ravaille; Benoït Debord; Frédéric Gérôme; Assaad Baz; Georges Humbert; Fetah Benabid; Sylvain Schwartz; Fabien Bretenaker. A Test Resonator for Kagome Hollow-Core Photonic Crystal Fibers for Resonant Rotation Sensing. 2016, 1 .
AMA StyleIhsan Fsaifes, Gilles Feugnet, Alexia Ravaille, Benoït Debord, Frédéric Gérôme, Assaad Baz, Georges Humbert, Fetah Benabid, Sylvain Schwartz, Fabien Bretenaker. A Test Resonator for Kagome Hollow-Core Photonic Crystal Fibers for Resonant Rotation Sensing. . 2016; ():1.
Chicago/Turabian StyleIhsan Fsaifes; Gilles Feugnet; Alexia Ravaille; Benoït Debord; Frédéric Gérôme; Assaad Baz; Georges Humbert; Fetah Benabid; Sylvain Schwartz; Fabien Bretenaker. 2016. "A Test Resonator for Kagome Hollow-Core Photonic Crystal Fibers for Resonant Rotation Sensing." , no. : 1.
Current limitations in multiphoton endoscopic imaging are overcome through the fabrication and use of broad transmission, low dispersion hypocycloid-shape Kagome HC-PCF for both excitation and collection. Two-photon imaging capabilities are demonstrated on fluorescent beads.
Christopher Martin; Benoît Debord; Frédéric Gérôme; Fetah Benabid; Adela Ben-Yakar; Chris Martin. Multiphoton imaging using a high transmission broadband hypocycloid-shape Kagome HC-PCF. Conference on Lasers and Electro-Optics 2016, 1 .
AMA StyleChristopher Martin, Benoît Debord, Frédéric Gérôme, Fetah Benabid, Adela Ben-Yakar, Chris Martin. Multiphoton imaging using a high transmission broadband hypocycloid-shape Kagome HC-PCF. Conference on Lasers and Electro-Optics. 2016; ():1.
Chicago/Turabian StyleChristopher Martin; Benoît Debord; Frédéric Gérôme; Fetah Benabid; Adela Ben-Yakar; Chris Martin. 2016. "Multiphoton imaging using a high transmission broadband hypocycloid-shape Kagome HC-PCF." Conference on Lasers and Electro-Optics , no. : 1.