Investigation of As2S3-borosilicate chalcogenide glass-based dispersion-engineered photonic crystal fibre for broadband supercontinuum generation in the mid-IR region.

In the paper, a spirally filled solid core chalcogenide-based photonic crystal fibre is proposed, which is engineered to obtain a flattened broad anomalous dispersion profile. The spectrum spanning in the wavelength region from 1.5 to 3.6 μm was achieved by pumping hyperbolic secant pulses with a peak power of 350 W and 85 fs pulse duration, at a wavelength of 2.5 μm, in the optimized design of the fibre. This chalcogenide-based photonic crystal fibre of length 100 mm can be used for wavelength converter between light and microwave. It can find its application as up–down link applications between light and microwave, the light-microwave transducer in LiFi, and WiFi links. [ABSTRACT FROM AUTHOR]