Frédéric Gérôme - Academia.edu (original) (raw)
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Papers by Frédéric Gérôme
CLEO:2011 - Laser Applications to Photonic Applications, 2011
Kagome fibers were fabricated with core size larger than 100 µm. The fibers combined low loss ove... more Kagome fibers were fabricated with core size larger than 100 µm. The fibers combined low loss over broad transmission and with small bend loss, making it a potential solution for high power and fast laser delivery. OCIS Codes: 140.3510 Lasers, fiber, (060.5295) Photonic crystal fibers, (060.2280) Fiber design and fabrication The recent advances in high power ultrafast lasers and their
In this paper, we propose, through different examples, some alternate designs and methods of manu... more In this paper, we propose, through different examples, some alternate designs and methods of manufacturing for pushing the limits of active fiber optics. The novelty comes from modal filtering under laser operation, fabrication of fibers using silica powders and laser with extended spectrum of emission.
Advanced Solid State Lasers, 2014
CLEO: 2014, 2014
ABSTRACT We demonstrate sub-cycle gigawatt peak power pulses self-compressed by optical shock wav... more ABSTRACT We demonstrate sub-cycle gigawatt peak power pulses self-compressed by optical shock waves in a simple manner based on gas-filled kagome hollow-core photonic crystal fiber.
CLEO: 2014, 2014
ABSTRACT We compressed a high-energy SESAM-modelocked thin-disk laser using an Ar-filled Kagome-t... more ABSTRACT We compressed a high-energy SESAM-modelocked thin-disk laser using an Ar-filled Kagome-type HC-PCF: launching 41 µJ, 1.17 ps pulses directly from a 3-MHz oscillator, we obtain 179-fs pulses at 100 W of average power, reaching 80% overall compression efficiency
2006 European Conference on Optical Communications, 2006
We report a photonic bandgap fibre exhibiting a large solid core (diameter of 34 ¿m) combined wit... more We report a photonic bandgap fibre exhibiting a large solid core (diameter of 34 ¿m) combined with a very high negative chromatic dispersion coefficient (-1480 ps/(nm. km)).
Nature communications, 2015
Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle... more Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle multicolour field transients have been generated and applied to drive attosecond phenomena in strong-field physics. Because of their extensive bandwidth, single-cycle fields cannot be emitted or amplified by laser sources directly and, as a rule, are produced by external pulse compression-a combination of nonlinear optical spectral broadening followed up by dispersion compensation. Here we demonstrate a simple robust driver for high-field applications based on this Kagome fibre approach that ensures pulse self-compression down to the ultimate single-cycle limit and provides phase-controlled pulses with up to a 100 μJ energy level, depending on the filling gas, pressure and the waveguide length.
Optics letters, 2014
We report on the development of a hypocycloidal-core Kagome hollow-core photonic crystal fiber gu... more We report on the development of a hypocycloidal-core Kagome hollow-core photonic crystal fiber guiding, with low transmission loss in the 450-650 nm visible spectral range. Transmission loss records have been achieved with 70 dB/km at 600 nm, and 130 dB/km at 532 nm. As a demonstration of the fiber potential applications, we report on a compact 600 THz wide Raman comb generator, centered around 532 nm, and on a 10 W average power frequency-doubled Yb-fiber picosecond laser beam delivery, along with its use for organic material laser micro-processing.
Optics express, Jan 18, 2013
We report on numerical and experimental studies showing the influence of arc curvature on the con... more We report on numerical and experimental studies showing the influence of arc curvature on the confinement loss in hypocycloid-core Kagome hollow-core photonic crystal fiber. The results prove that with such a design the optical performances are strongly driven by the contour negative curvature of the core-cladding interface. They show that the increase in arc curvature results in a strong decrease in both the confinement loss and the optical power overlap between the core mode and the silica core-surround, including a modal content approaching true single-mode guidance. Fibers with enhanced negative curvature were then fabricated with a record loss-level of 17 dB/km at 1064 nm.
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013
ABSTRACT
Frontiers in Optics 2012/Laser Science XXVIII, 2012
ABSTRACT
2008 34th European Conference on Optical Communication, 2008
An original arrangement of air-holes and pure silica is proposed to design ultra broadband fibre ... more An original arrangement of air-holes and pure silica is proposed to design ultra broadband fibre couplers. Very high energy transferred superior to 92% on more than 700nm is demonstrated.
2011 13th International Conference on Transparent Optical Networks, 2011
We report on recent progress in the conception and fabrication of HCPCFs for unconventional spect... more We report on recent progress in the conception and fabrication of HCPCFs for unconventional spectral range. A brief review of the most noteworthy fibers laser sources based on gas-filled HCPCFs optically pumped is presented. After, recent works done in our group about light generation induced by an original discharge scheme in gas filled hollow-core capillaries with inner diameter down to
CLEO:2011 - Laser Applications to Photonic Applications, 2011
Kagome fibers were fabricated with core size larger than 100 µm. The fibers combined low loss ove... more Kagome fibers were fabricated with core size larger than 100 µm. The fibers combined low loss over broad transmission and with small bend loss, making it a potential solution for high power and fast laser delivery. OCIS Codes: 140.3510 Lasers, fiber, (060.5295) Photonic crystal fibers, (060.2280) Fiber design and fabrication The recent advances in high power ultrafast lasers and their
In this paper, we propose, through different examples, some alternate designs and methods of manu... more In this paper, we propose, through different examples, some alternate designs and methods of manufacturing for pushing the limits of active fiber optics. The novelty comes from modal filtering under laser operation, fabrication of fibers using silica powders and laser with extended spectrum of emission.
Advanced Solid State Lasers, 2014
CLEO: 2014, 2014
ABSTRACT We demonstrate sub-cycle gigawatt peak power pulses self-compressed by optical shock wav... more ABSTRACT We demonstrate sub-cycle gigawatt peak power pulses self-compressed by optical shock waves in a simple manner based on gas-filled kagome hollow-core photonic crystal fiber.
CLEO: 2014, 2014
ABSTRACT We compressed a high-energy SESAM-modelocked thin-disk laser using an Ar-filled Kagome-t... more ABSTRACT We compressed a high-energy SESAM-modelocked thin-disk laser using an Ar-filled Kagome-type HC-PCF: launching 41 µJ, 1.17 ps pulses directly from a 3-MHz oscillator, we obtain 179-fs pulses at 100 W of average power, reaching 80% overall compression efficiency
2006 European Conference on Optical Communications, 2006
We report a photonic bandgap fibre exhibiting a large solid core (diameter of 34 ¿m) combined wit... more We report a photonic bandgap fibre exhibiting a large solid core (diameter of 34 ¿m) combined with a very high negative chromatic dispersion coefficient (-1480 ps/(nm. km)).
Nature communications, 2015
Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle... more Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle multicolour field transients have been generated and applied to drive attosecond phenomena in strong-field physics. Because of their extensive bandwidth, single-cycle fields cannot be emitted or amplified by laser sources directly and, as a rule, are produced by external pulse compression-a combination of nonlinear optical spectral broadening followed up by dispersion compensation. Here we demonstrate a simple robust driver for high-field applications based on this Kagome fibre approach that ensures pulse self-compression down to the ultimate single-cycle limit and provides phase-controlled pulses with up to a 100 μJ energy level, depending on the filling gas, pressure and the waveguide length.
Optics letters, 2014
We report on the development of a hypocycloidal-core Kagome hollow-core photonic crystal fiber gu... more We report on the development of a hypocycloidal-core Kagome hollow-core photonic crystal fiber guiding, with low transmission loss in the 450-650 nm visible spectral range. Transmission loss records have been achieved with 70 dB/km at 600 nm, and 130 dB/km at 532 nm. As a demonstration of the fiber potential applications, we report on a compact 600 THz wide Raman comb generator, centered around 532 nm, and on a 10 W average power frequency-doubled Yb-fiber picosecond laser beam delivery, along with its use for organic material laser micro-processing.
Optics express, Jan 18, 2013
We report on numerical and experimental studies showing the influence of arc curvature on the con... more We report on numerical and experimental studies showing the influence of arc curvature on the confinement loss in hypocycloid-core Kagome hollow-core photonic crystal fiber. The results prove that with such a design the optical performances are strongly driven by the contour negative curvature of the core-cladding interface. They show that the increase in arc curvature results in a strong decrease in both the confinement loss and the optical power overlap between the core mode and the silica core-surround, including a modal content approaching true single-mode guidance. Fibers with enhanced negative curvature were then fabricated with a record loss-level of 17 dB/km at 1064 nm.
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013
ABSTRACT
Frontiers in Optics 2012/Laser Science XXVIII, 2012
ABSTRACT
2008 34th European Conference on Optical Communication, 2008
An original arrangement of air-holes and pure silica is proposed to design ultra broadband fibre ... more An original arrangement of air-holes and pure silica is proposed to design ultra broadband fibre couplers. Very high energy transferred superior to 92% on more than 700nm is demonstrated.
2011 13th International Conference on Transparent Optical Networks, 2011
We report on recent progress in the conception and fabrication of HCPCFs for unconventional spect... more We report on recent progress in the conception and fabrication of HCPCFs for unconventional spectral range. A brief review of the most noteworthy fibers laser sources based on gas-filled HCPCFs optically pumped is presented. After, recent works done in our group about light generation induced by an original discharge scheme in gas filled hollow-core capillaries with inner diameter down to