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Dispersive-wave-based octave-spanning supercontinuum generation in InGaP membrane waveguides on a silicon substrate

机译:在硅衬底上的InGaP薄膜波导中基于色散波的倍频程超连续谱生成

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摘要

We demonstrate the generation of an octave-spanning supercontinuum in InGaP membrane waveguides on a silicon substrate pumped by a 1550-nm femtosecond source. The broadband nature of the supercontinuum in these dispersion-engineered high-index-contrast waveguides is enabled by dispersive wave generation on both sides of the pump as well as by the low nonlinear losses inherent to the material. We also measure the coherence properties of the output spectra close to the pump wavelength and find that the supercontinuum is highly coherent at least in this wavelength range. (C) 2015 Optical Society of America
机译:我们展示了在由1550 nm飞秒源泵浦的硅基板上的InGaP薄膜波导中跨度八度的超连续谱。在这些色散设计的高折射率对比波导中,超连续谱的宽带特性是通过泵两侧的色散波产生以及材料固有的低非线性损耗实现的。我们还测量了接近泵浦波长的输出光谱的相干特性,发现超连续谱至少在此波长范围内具有高度相干性。 (C)2015年美国眼镜学会

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