Abstract

In this Letter, we numerically simulate the generation of a 1–15 μm mid-infrared supercontinuum (SC) from a highly nonlinear Ge_11.5As₂₄Se_64.5-based photonic crystal fiber (PCF). This ultra-broadband SC is achieved in a 100 mm long PCF pumped using 85 fs laser pulses operated at 3.1 μm and a peak pulse power of 3 kW. The proposed design offers a flat dispersion profile with two zero dispersion wavelengths. This broad and flat dispersion profile of the Ge_11.5As₂₄Se_64.5 PCF, combined with the high nonlinearity (2474 W⁻¹ km⁻¹), generates an ultra-broadband SC.

© 2016 Chinese Laser Press

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