External cavity diode laser as a stable-frequency light source for application in laser cooling of molecules

被引：11
|
作者：
Yang, Xiuxiu [1 ]
Yin, Yanning [1 ]
Li, Xingjia [1 ]
Xu, Supeng [1 ]
Xia, Yong [1 ]
Yin, Jianping [1 ]
机构：
[1] E China Normal Univ, Dept Phys, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2016年 / 14卷 / 07期
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
LINEWIDTH; STABILIZATION; NM;
D O I：
10.3788/COL201614.071403
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate a scheme to use a Littman configuration external cavity diode laser (ECDL) as a stable-frequency light source to stabilize two cw single-mode Ti:sapphire lasers for laser cooling of magnesium fluoride molecules. An ECDL based on the Littman configuration is constructed and stabilized by a digital signal processor system. We stabilize the frequency of our ECDL to +/- 0.77 MHz precision over 10 h and the Allan standard deviation reaches 2.6 x 10(-11) at an integration time of 10 s. We lock two Ti: sapphire lasers through a transfer cavity, and either laser has a long-term frequency stability of +/- 2.5 MHz.
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页数：5
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