Abstract
A high numerical aperture (NA) step-index fiber with As2Se3 core and As2S5 cladding was fabricated for deep mid-infrared (MIR) transmission over 10μm. MIR supercontinuum generation covering the wavelength from 3 to 10μm was successfully demonstrated in this fiber using a MIR pulsed laser source with μJ-level energy output around 7μm. A 4-cm-long fiber sample is sufficient to enable a spectral broadening spreading from 3 to 10μm in a 20 dB dynamic range.
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Deng, D., Liu, L., Tuan, T. H., Kanou, Y., Matsumoto, M., Tezuka, H., … Ohishi, Y. (2016). Mid-infrared supercontinuum covering 3-10μm using a As2Se3 core and As2S5 cladding step-index chalcogenide fiber. Journal of the Ceramic Society of Japan, 124(1), 103–105. https://doi.org/10.2109/jcersj2.15203
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