![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
ABSTRACT
In this work, two kinds of GeS2–Ga2S3–CsI chalcogenide glasses had been fabricated in conventional meltquenching method, and these glasses express excellent transmittance (0.52–10.5 µm), low refractive index difference, high Raman gain and good thermal stability against crystallization. We designed a highly nonlinear step-index fibre consisting of a 72GeS2–18Ga2S3–10CsI core and a 73GeS2–15Ga2S3–12CsI cladding with the zero dispersion wavelength in near-infrared (<1 µm), and theoretically analysed the optical and nonlinear characteristics of this fibre in detail. Substantial simulation results revealed that wide ultra-flat supercontinuum broadening from the visible to the mid-infrared range can be achieved by pumping this fibre at 1064 nm.
Additional information
Funding
This project was sponsored by the National Natural Science Foundation of China (grant numbers 61435009 and 61377099) and the K. C. Wong Magna Fund in Ningbo University.