A compact light source at 461 nm using a periodically poled LiNbO3 waveguide for strontium magneto-optical trapping.
A compact light source at 461 nm using a periodically poled LiNbO3 waveguide for strontium magneto-optical trapping.
复制标题
461 nm 紧凑型光源，使用周期性极化 LiNbO3 波导进行锶磁光捕获。
作者：
D. Akamatsu;M. Yasuda;T. Kohno;A. Onae;F. Hong
我们开发了一种紧凑的461 nm光源，使用单通周期极化LiNbO3波导进行二次谐波（SH）产生。当耦合到波导中的922 nm基光功率为248 mW时，得到461 nm处的光功率为76 mW。虽然在高SH功率下观察到相匹配温度接受带宽变窄，但通过将器件温度控制在0.01°C的不确定度内，可以实现稳定的夜间运行。
We have developed a compact light source at 461 nm using a single-pass periodically poled LiNbO3 waveguide for second-harmonic (SH) generation. The obtained optical power at 461 nm is 76 mW when the power of the 922-nm fundamental light coupled into the waveguide is 248 mW. Although a narrowing of the phase-matching temperature acceptance bandwidth is observed at a high SH power, stable overnight operation is realized by carefully controlling the device temperature within an uncertainty of 0.01 °C.