Abstract In this paper, a waveguide consisting of a core of As2Se3 chalcogenide glass and the upper and lower claddings of MgF2 with two zero-dispersion wavelengths (ZDW) has been proposed. By optimization of the dimensions of the core and the claddings, their effects on the dispersion curve have been investigated and a suitable structure with a flat dispersion curve, an effective mode area of 1.6 μm2 in a pump wavelength of 2.8 μm, and hence, a nonlinear coefficient greater than 34 w−1 m−1 has been obtained. A broadband supercontinuum in a wavelength range of 1.5 μm to 15 μm has been generated by applying an input pulse with duration of 100 fs and a maximum power of 2 kw to this waveguide. Due to the large width of the supercontinuum generated (SCG), the short length of the waveguide (maximum 5 mm), and a low input power, this structure is suitable for use in optical integrated circuits and its various applications.

中文翻译：

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用于生成宽带超连续谱的色散设计和高度非线性肋状波导的设计和分析

摘要 本文提出了一种由 As2Se3 硫属化物玻璃芯和具有两个零色散波长 (ZDW) 的 MgF2 上下包层组成的波导。通过优化纤芯和包层的尺寸，研究了它们对色散曲线的影响，并采用了具有平坦色散曲线、2.8 μm 泵浦波长下有效模式面积为 1.6 μm2 的合适结构，因此，已获得大于 34 w-1 m-1 的非线性系数。通过向该波导施加持续时间为 100 fs 和最大功率为 2 kw 的输入脉冲，已生成波长范围为 1.5 μm 至 15 μm 的宽带超连续谱。由于产生的超连续谱 (SCG) 的宽度较大，波导长度较短（最大 5 mm），并且输入功率较低，