Numerical investigation on broadband mid-infrared supercontinuum generation in chalcogenide suspended-core fibers

Mo Kundong¹, Zhai Bo^{1, †}, Jianfeng Li¹, Coscelli E², Poli F², Cucinotta A², Selleri S², Wei Chen¹, Liu Yong¹

(color online) Pumped by input pulses with pulse duration of (a), (c) 200 fs and (b), (d) 1000 fs, peak power of 1240 W, and center wavelength of 2000 nm. The blue and green curves in panels (a) and (b) show the LWE and the PPL beyond 3 μm, respectively. (c), (d) The SD of spectrum density with 20 dB bandwidth versus propagation distance in the As₂Se₃ SCF with a ZDW of 1982 nm.