Poulvellarie Nicolas, Mas Arabi Carlos, Ciret Charles, Combrié Sylvain, De Rossi Alfredo, Haelterman Marc, Raineri Fabrice, Kuyken Bart, Gorza Simon-Pierre, Leo François
Opt Lett. 2021 Apr 1;46(7):1490-1493. doi: 10.1364/OL.418064.
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.
我们从理论和实验上研究了绝缘体上III-V族线波导中的II型二次谐波产生。我们表明，传播方向起着至关重要的作用，并且纵向场分量可用于实现稳健且高效的转换。我们预测，对于类似的波导尺寸，最大理论转换率大于I型二次谐波产生的转换率，并且在传播损耗的限制下，实验转换效率达到12%/W。
