Journal ArticleDOI
Highly nonlinear As2Se3-based chalcogenide photonic crystal fiber for midinfrared supercontinuum generation
Rim Cherif,Amine Ben Salem,Mourad Zghal,Pascal Besnard,Thierry Chartier,Laurent Brilland,Johann Troles +6 more
TLDR
In this article, the authors proposed a real, highly nonlinear, As2Se3-based chalcogenide photonic crystal fiber in which a supercontinuum spanning more than 2 octaves is generated at =2.8 µm in the femtosecond regime.Abstract:
We propose a real, highly nonlinear, As2Se3-based chalcogenide photonic crystal fiber in which a supercontinuum (SC) spanning more than 2 octaves is generated at =2.8 µm in the femtosecond regime. The designed PCF is characterized for ultrabroadband mid-infrared SC generation in only few millimetres of fiber length. A full modal analysis of the optical properties of the fiber is presented in terms of the effective area, the nonlinearity coefficient, and the chromatic dispersion. A second-order Sellmeier approximation is proposed to estimate the variation of the refractive index of the As2Se3 material as a function of wavelength. The numerical study shows that a SC spanning from 1.9 to 4 µm can be generated in the chalcogenide PCF with an air-hole diameter of 1.26 µm and a pitch of 1.77 µm. We examine the interplay of the nonlinear effects that lead to the construction of the SC as a function of the input power and the fiber length. We find that the dynamics behind the SC generation is mainly ruled by the effects of self phase modulation and stimulated Raman scattering. The intrinsic properties of the chalcogenide glasses and the microstructure provide enhanced optical properties and offer numerous applications in the infrared field.read more
Citations
More filters
Supercontinuum generation, photonic crystal fiber
TL;DR: In this article, a review of numerical and experimental studies of supercontinuum generation in photonic crystal fiber is presented over the full range of experimentally reported parameters, from the femtosecond to the continuous-wave regime.
Journal ArticleDOI
Super-flat coherent supercontinuum source in As 38.8 Se 61.2 chalcogenide photonic crystal fiber with all-normal dispersion engineering at a very low input energy.
TL;DR: It is shown that launching low-energy 50 fs optical pulses with 0.88 kW peak power at a central wavelength of 3.7 μm into a 5 cm long ANDi-PCF generates a flat-top coherent MIR-SC spanning from 2900 to 4575 nm with a high spectral flatness of 3 dB.
Journal ArticleDOI
High brightness 2.2-12 μm mid-infrared supercontinuum generation in a nontoxic chalcogenide step-index fiber
Bin Zhang,Yi Yu,Chengcheng Zhai,Sisheng Qi,Yuwei Wang,Anping Yang,Xin Gai,Rongping Wang,Zhiyong Yang,Barry Luther-Davies +9 more
TL;DR: In this paper, an environment friendly nonlinear chalcogenide glass fiber with a Ge-Sb-Se core and a ge-Se cladding is fabricated for bright broadband mid-infrared (MIR) supercontinuum (SC) generation.
Journal ArticleDOI
Low loss, high NA chalcogenide glass fibers for broadband mid-infrared supercontinuum generation
Bin Zhang,Wei Guo,Yi Yu,Chengcheng Zhai,Sisheng Qi,Anping Yang,Li Lei,Zhiyong Yang,Rongping Wang,Dingyuan Tang,Guangming Tao,Barry Luther-Davies +11 more
TL;DR: In this paper, a step-index fiber with a small core (~5.5μm) and a large numerical aperture (~1.3) was fabricated using modified physical and chemical purification techniques.
Journal ArticleDOI
Numerical investigation on high power mid-infrared supercontinuum fiber lasers pumped at 3 µm
TL;DR: Simulation results show that, when a W-type tellurite fiber with a zero dispersion wavelength (ZDW) of 2.7 µm is pumped at 2.78 μm, the power proportion of the SC laser beyond 3 µm can exceed 40% and the attainable SC output power of the proposed solid-cladding telluite fiber is one order of magnitude higher than that of existing microstructured tellurites.
References
More filters
Journal ArticleDOI
Supercontinuum generation in photonic crystal fiber
TL;DR: In this paper, a review of numerical and experimental studies of supercontinuum generation in photonic crystal fiber is presented over the full range of experimentally reported parameters, from the femtosecond to the continuous-wave regime.
Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
TL;DR: In this article, the authors demonstrate experimentally that air-silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths, and exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared.
Journal ArticleDOI
Over 4000 nm bandwidth of mid-IR supercontinuum generation in sub-centimeter segments of highly nonlinear tellurite PCFs.
Peter Domachuk,N. A. Wolchover,Mark Cronin-Golomb,Aimin Wang,A.K. George,Cristiano M. B. Cordeiro,Jonathan Knight,Fiorenzo G. Omenetto +7 more
TL;DR: Broad bandwidth, mid-IR supercontinuum generation using a sub-cm (8 mm) length of highly nonlinear tellurite microstructured photonic crystal fiber, comparable or in excess of previously reported spectra for other nonlinear glass fiber formulations despite the significantly shorter fiber length is reported.
Journal ArticleDOI
Optical properties of a low-loss polarization-maintaining photonic crystal fiber
TL;DR: A low-loss and highly birefringent polarization maintaining photonic crystal fiber has been fabricated and the fiber loss and modal bireFringence at 1550 nm were 1.3 dB/km and 1.4x10 -3 , respectively.
Journal ArticleDOI
Highly nonlinear As-S-Se glasses for all-optical switching.
J. M. Harbold,Fatih Omer Ilday,Frank W. Wise,Jasbinder S. Sanghera,V.Q. Nguyen,Leslie Brandon Shaw,Ishwar D. Aggarwal +6 more
TL;DR: A series of chalcogenide glasses from the As-S-Se system that is designed to have strong nonlinearities are synthesized and measurements reveal that many of these glasses offer optical Kerr non linearities greater than 400 times that of fused silica.