Chinese Optics Letters, 2016, 14 (12): 123201, Published Online: Aug. 2, 2018
Chalcogenide photonic crystal fiber for ultraflat mid-infrared supercontinuum generation Download: 1155次
320.6629 Supercontinuum generation 000.4430 Numerical approximation and analysis 060.4370 Nonlinear optics, fibers 160.4330 Nonlinear optical materials 260.2030 Dispersion
Abstract
In this Letter, we numerically simulate the generation of a 1–15 μm mid-infrared supercontinuum (SC) from a highly nonlinear Ge 11.5 As 24 Se 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 11.5 As 24 Se 64.5 PCF, combined with the high nonlinearity (2474 W 1 km 1 ), generates an ultra-broadband SC.
Sandeep Vyas, Takasumi Tanabe, Manish Tiwari, Ghanshyam Singh. Chalcogenide photonic crystal fiber for ultraflat mid-infrared supercontinuum generation[J]. Chinese Optics Letters, 2016, 14(12): 123201.