Flattened and broadband mid-infrared super-continuum generation in As2Se3 based holey fiber
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By using an As2Se3 based holey fiber (HF) with a normal flat dispersion profiles, a flattened and broadband mid-infrared super-continuum generation is analysed. The transmission of an ultra-short pulse in the HF is numerically simulated by solving the generalized nonlinear Schrödinger equation under various parameters. The simulation results show that, by launching a pulse with a width of 50 fs and a peak power of 4.25 kW at 4375 nm into the 6 mm-long HF, a flat and broadband super-continuum at 3 dB level is successfully generated. The super-continuum covers the wavelengths from 3866 to 5958 nm which is the largest flat bandwidth reported in such a short fiber.
KeywordsHoley fiber Normal flat dispersion Mid-infrared super-continuum
This work was supported in part by the High Level Research Start-up Fund of ZhouKou Normal University, Henan, China (No. ZKNUC2017033).
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