Opt Lett. 2019 Mar 15;44(6):1339-1342. doi: 10.1364/OL.44.001339.
Second-harmonic generation is demonstrated in AlGaAs-on-insulator waveguides at telecom wavelengths. Using this material platform, a maximum internal normalized efficiency of 1202±55% W cm is achieved for a 100 fs pulsed excitation wavelength at 1560 nm. This finding is important towards enabling new chip-scale devices for sensing, metrology, and quantum optics.
在电信波长的 AlGaAs 上绝缘体波导中展示了二次谐波产生。使用这种材料平台，在 1560nm 的 100fs 脉冲激发波长下，实现了最大内部归一化效率为 1202±55% W cm。这一发现对于实现用于传感、计量和量子光学的新型片上器件具有重要意义。
