Chalcogenide glass microstructured optical fiber as a potential candidate for slow-light generation via stimulated Brillouin scattering

Abstract The distinctive and prominent material characteristics of chalcogenide glasses, i.e., amorphous semiconductors containing one or more chalcogen elements have been examined due to their potential applications to enable the compact fiber lasers and amplifiers in mid-IR regime. Theoretical investigation based on an alternative optical model for the solid-core chalcogenide glass hexagonal lattice microstructured optical fiber (H-MOF) is explored for prompting the generation of slow-light facilitated through stimulated Brillouin scattering (SBS). Results are simulated for mode-area, nonlinearity coefficient, Brillouin gain, time-delay, and the admissible pump power levels. We noticed that from 1m length of single-mode chalcogenide H-MOF, Brillouin gain of about ~87.6dB and the time-delay of ~137.1ns is achieved at 1.06 µm pumped with 100 mW of power enabling the manifestation of slow-light in small core H-MOFs. For validation of the simulated results we included the comparisons with those as narrated in the literature.