Narrow linewidth tunable external cavity diode laser using wide bandwidth filter.
Narrow linewidth tunable external cavity diode laser using wide bandwidth filter.
复制标题
DOI：
10.1063/1.3687441
复制
发表时间：
2012-02
期刊：
影响因子：
--
通讯作者：
D. J. Thompson;R. Scholten
中科院分区：
文献类型：
--
作者：
D. J. Thompson;R. Scholten
我们演示了一个外腔半导体激光器（ECDL）采用多模带宽的模式选择干涉滤光片的单模操作。猫眼反射器使反馈效率最大化并降低对腔内光学未对准的敏感性。观察到26 kHz的窄线宽，并且使用单个785 nm滤波器可以将激光器调谐超过14 nm，而不改变输出光束方向。猫眼反射器和滤波器允许机械刚性设计，没有显著的机械共振，通过将频率噪声谱与使用衍射光栅和运动安装的常见Littrow ECDL设计的频率噪声谱进行比较来说明。
We demonstrate single mode operation of an external cavity diode laser (ECDL) employing an interference filter with multimode bandwidth for mode selection. A cateye reflector maximizes feedback efficiency and reduces susceptibility to intra-cavity optical misalignment. Narrow linewidths of 26 kHz are observed, and the laser can be tuned over 14 nm using a single 785 nm filter, without alteration of the output beam direction. The cateye reflector and filter allow a mechanically rigid design free of significant mechanical resonances, illustrated by comparison of the frequency noise spectrum with that of a common Littrow ECDL design using a diffraction grating and kinematic mount.