Fast scanning cavity offset lock for laser frequency drift stabilization
Fast scanning cavity offset lock for laser frequency drift stabilization
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DOI：
10.1063/1.3455830
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发表时间：
2010-07-01
影响因子：
1.6
通讯作者：
Lange, Wolfgang
中科院分区：
文献类型：
--
作者：
Seymour-Smith, Nicolas;Blythe, Peter;Lange, Wolfgang
我们采用了紧凑的装置来实现激光频率的长期稳定。来自稳定参考激光器和多个从属激光器的光耦合到共焦法布里-珀罗谐振器中。当在一个自由光谱范围内扫描腔的长度时，通过稳定从属激光器的传输峰值相对于主激光器的连续峰值的位置，主激光器的长期稳定性被转移到从属激光器。通过使用快速模拟峰值检测和基于微控制器的低延迟数字反馈，扫描频率为3 kHz，我们获得了380 Hz的反馈带宽，并且在超过1 s的时间尺度上获得了优于10 kHz的相对稳定性，这比以前的扫描腔稳定系统有了显着改进。 (C) 2010 年美国物理研究所。 [号码：10.1063/1.3455830]
We have implemented a compact setup for long-term laser frequency stabilization. Light from a stable reference laser and several slave lasers is coupled into a confocal Fabry-Perot resonator. By stabilizing the position of the transmission peaks of the slave lasers relative to successive peaks of the master laser as the length of the cavity is scanned over one free spectral range, the long-term stability of the master laser is transferred to the slave lasers. By using fast analog peak detection and low-latency microcontroller-based digital feedback, with a scanning frequency of 3 kHz, we obtain a feedback bandwidth of 380 Hz and a relative stability of better than 10 kHz at timescales longer than 1 s, a significant improvement on previous scanning-cavity stabilization systems. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3455830]