Mid-infrared Supercontinuum Generation in Ge_(11.5)As_(24)Se_(64.5) based Chalcogenide Photonic Crystal Fiber

摘要

In this paper, we have numerically investigated a Ge_(11.5)As_(24)Se_(64.5) based chalcogenide photonic crystal fiber and simulated 1-10 μm mid-infrared supercontinuum generation. This mid-infrared broadband supercontinuum is achieved for 100 mm long photonic crystal fiber pumped with 85 femto-second laser pulses operated at 3.1 μm and peak power pulse is 3 kW. A broad and flat dispersion profile with two zero dispersion wavelengths of Ge_(11.5)As_(24)Se_(64.5) photonic crystal fiber combined with the high nonlinearity and generate ultra flat broadband supercontinuum.