The generation of Watt-level supercontinuum covering 2-6.5 µm in an all-fiber structured infrared nonlinear transmission system

Bin Yan; Tao Huang; Kai Xia; Peilong Yang; Shixun Dai; Qiuhua Nie

doi:10.1117/12.2586464

12 March 2021 The generation of Watt-level supercontinuum covering 2-6.5 μm in an all-fiber structured infrared nonlinear transmission system

Bin Yan, Tao Huang, Kai Xia, Peilong Yang, Shixun Dai, Qiuhua Nie

Author Affiliations +

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 1176330 (2021) https://doi.org/10.1117/12.2586464
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

We demonstrated a robust Watt-level mid-infrared supercontinuum (MIR-SC) source from 2 to 6.5 μm in an all-fiber structured cascade infrared transmission system. In combination with an optimized ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber-based high-power MIR-SC source and an advanced fiber coupling system, we achieved a SC with 30 dB spectral bandwidth spanning from 2000 to 6500 nm SC, with an output power scaled up to 1.13 W in a segment of 4- meter-long As₂S₃ fiber. And the maximum output power of 1.28W was achieved in a segment of 2-meter-long As₂S₃ fiber. To the best of our knowledge, this is the first report of an all-fiber supercontinuum based on commercial As₂S₃ step-index fiber with both watt-level output power and systematically investigation of the output characteristics. And in the meantime, we provided a feasible idea for fiber coupling under high power condition.

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Bin Yan, Tao Huang, Kai Xia, Peilong Yang, Shixun Dai, and Qiuhua Nie "The generation of Watt-level supercontinuum covering 2-6.5 μm in an all-fiber structured infrared nonlinear transmission system", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 1176330 (12 March 2021); https://doi.org/10.1117/12.2586464

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