Broadband supercontinuum generation and Raman response in Ge11.5As24Se64.5 based chalcogenide photonic crystal fiber

We numerically demonstrated that the generation of 1.4-10 μm mid-infrared supercontinuum from highly nonlinear Ge
_11.5
As
₂₄
Se
_64.5
based photonic crystal fiber chalcogenide glass. This ultra-broadband supercontinuum achieved for 150 mm long photonic crystal fiber pumped with 85 femto-second laser pulses operated at 3.1 μm and peak power pulse is 5 kW. A broad and flat dispersion profile of Ge
_11.5
As
₂₄
Se
_64.5
PCF associated with the extreme nonlinearity and generate hyper broadband supercontinuum. Raman gain of Ge
_11.5
As
₂₄
Se
_64.5
glass is four times higher to fused silica and As
₂
Se
₃
glass and Raman frequency shift for the Ge
_11.5
As
₂₄
Se
_64.5
glass is ≈ 7.1 THz.