Towards three octave-spanning mid-IR supercontinuum generation in chalcogenide fibers with two zero dispersion wavelengths

摘要

We have numerically demonstrated mid-IR supercontinuum generation spanning more than three octaves in all-solid chalcogenide glass fibers with two zero dispersion wavelengths pumped by 50-pJ femtosecond pulses at 2 microns. We manufactured the proper step-index fibers with As39.4Se55.3Te5.3 core and As39.4S60.6 cladding having various core diameters and theoretically studied wavelength conversion up to 8 microns.