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Efficient type II second harmonic generation in an indium gallium phosphide on insulator wire waveguide aligned with a crystallographic axis

机译:高效II型二次磷化铟磷化铟镓在绝缘体线波导上用晶体轴对准

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摘要

We theoretically and experimentally investigate type II second harmonic generation in III-V-on-insulator wire waveguides. We show that the propagation direction plays a crucial role and that longitudinal field components can be leveraged for robust and efficient conversion. We predict that the maximum theoretical conversion is larger than that of type I second harmonic generation for similar waveguide dimensions and reach an experimental conversion efficiency of 12%/W, limited by the propagation loss. (C) 2021 Optical Society of America
机译:我们从理论和实验上研究了III-V绝缘线波导中II型二次谐波的产生。我们表明,传播方向起着至关重要的作用,纵向场分量可以用于稳健和高效的转换。我们预测,对于类似的波导尺寸,最大理论转换比I型二次谐波产生更大,实验转换效率为12%/W,受传播损耗的限制。(2021)美国光学学会

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