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Numerical research on mid-infrared supercontinuum generation in Ge11.5As24Se64.5 few-mode photonic crystal fibers

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Abstract

Based on the nonlinear and mode coupling effect in few-mode photonic crystal fiber (FM-PCF), an approach for supercontinuum (SC) generation in the mid-infrared (MIR) region is proposed. The propagation characteristics of Ge11.5As24Se64.5 FM-PCF have been analyzed and optimized by the full-vector finite element method. The two-mode generalized nonlinear Schrodinger equation (TM-GNLSE) is set up, and the SC generation has been analyzed by the split-step Fourier method. The SC from 1.80 µm to 11.32 µm is generated by pumping 3.0-cm-long fiber at the central wavelength of 3.0 µm, the peak power of 120 W, and the pulse duration of 250 fs.

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Authors and Affiliations

  1. College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing, 210023, China

    Weihua Shi, Tiantian Zhang & Chuanxiang Xu

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  1. Weihua Shi
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  2. Tiantian Zhang
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  3. Chuanxiang Xu
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Correspondence to Weihua Shi.

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The authors declare that there are no conflicts of interest related to this article.

This work has been supported by the National Natural Science Foundation of China (No.61571237), and the Postgraduate Research and Innovation Program Project of Jiangsu (No.KYCX20_0795).

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Shi, W., Zhang, T. & Xu, C. Numerical research on mid-infrared supercontinuum generation in Ge11.5As24Se64.5 few-mode photonic crystal fibers. Optoelectron. Lett. 18, 0233–0237 (2022). https://doi.org/10.1007/s11801-022-1121-y

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  • DOI: https://doi.org/10.1007/s11801-022-1121-y

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