窄线宽的外腔半导体激光器

A narrow linewidth external-cavity semiconductor laser

介绍了使用闪耀光栅作为光反馈元件 ,与原始线宽大于 12 0 0GHz的半导体激光器构成的Littrow型外腔半导体激光器 ,极大地改善了激光器的性能。实验得到了功率恒定、模式单一稳定、线宽优于 1.2MHz的激光输出 ,压窄线宽比为 10 6,并针对Littrow型外腔结构提出了简洁。

We introduce the external-cavity semiconductor laser with feedback of Littrow configuration. The spectral line width is narrowed to be less than 1.2MHz and the output stability is remarkably enhanced. We also propose a new complex-cavity method which can greatly narrow the line width of a semiconductor laser.