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T. MESBAHI1,2, A. MEDJOURI1,*
The supercontinuum (SC) generation in chalcogenide Photonic crystal fiber (PCF) offers unique opportunities for midinfrared light sources due to the broad transparency window of chalcogenide materials and the high nonlinearity. In this work, we analyze and design a Ge20As20Se17Te43 chalcogenide PCFs for broadband SC generation in the all-normal dispersion regime. The SC generation was carried out using numerical modelling by solving the generalized nonlinear Schrödinger equation (GNLSE). Our results show that the SC spans 2.9–13.95 μm at -5 dB with stable and highly coherent spectra. These results provide guidelines for future experimental efforts and the design of chalcogenide fibers tailored for specific SC applications in spectroscopy and frequency metrology.
Photonic crystal fibers, Supercontinuum generation, Nonlinear optics, Chalcogenides, Spectroscopy.
T. MESBAHI, A. MEDJOURI, Simulation and modeling of supercontinuum generation in GAST chalcogenide PCF, Optoelectronics and Advanced Materials - Rapid Communications, 19, 7-8, July-August 2025, pp.318-327 (2025).
Submitted at: Nov. 24, 2024
Accepted at: Aug. 4, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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