将注入锁定的Nd:YAG激光器宽带高频稳定到高精细度法布里-珀罗腔。

Wideband and high frequency stabilization of an injection-locked Nd:YAG laser to a high-finesse Fabry Perot cavity.

作者信息

Musha M, Nakagawa K, Ueda K

出版信息

Opt Lett. 1997 Aug 1;22(15):1177-9. doi: 10.1364/ol.22.001177.

DOI:10.1364/ol.22.001177

Abstract

High frequency stabilization of a 2.2-W injection-locked laser-diode-pumped Nd:YAG laser to a high-finesse optical cavity has been realized by frequency control of the master laser. With the help of an external electro-optical modulator, the feedback bandwidth was extended to 1 MHz and the frequency noise relative to the reference cavity was suppressed to 3 x 10(-4) Hz/Hz(1/2) below 1 kHz. This feedback laser system is an ideal laser source for gravitational wave detectors, which require both ultralow frequency noise and high output power.

摘要

通过对主激光器的频率控制，实现了将一台2.2瓦注入锁定激光二极管泵浦Nd:YAG激光器高频稳定到一个高精细度光学腔。借助外部电光调制器，反馈带宽扩展到了1兆赫兹，并且相对于参考腔的频率噪声在1千赫兹以下被抑制到3×10⁻⁴赫兹/赫兹½。这种反馈激光系统是引力波探测器的理想激光源，引力波探测器既需要超低频噪声又需要高输出功率。