2023
DOI: 10.1088/1742-6596/2426/1/012002
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Mid-IR supercontinuum generation in dispersion flattened As38Se62 chalcogenide photonic crystal fiber

Abstract: We have created a PCF with square shaped core using chalcogenide material As38Se62 as core and air holes in IR region, which yield very high optical non linearity of 1290 W−1Km−1 at 3.5 μm, further gives a flat dispersion profile. The fiber has been used for numerically simulate SCG using low power pump pulse width (TFWHM) at 50 fs duration at 3.5 μm. At the end of 10 mm fiber, SC broadening of about 2000 to 12000 nm can be achieved with pulses of 4200 W peak power.

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