Chinese Optics Letters, 2016, 14 (7): 071403, Published Online: Aug. 3, 2018
External cavity diode laser as a stable-frequency light source for application in laser cooling of molecules Download: 793次
Abstract
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 × 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 .
Xiuxiu Yang, Yanning Yin, Xingjia Li, Supeng Xu, Yong Xia, Jianping Yin. External cavity diode laser as a stable-frequency light source for application in laser cooling of molecules[J]. Chinese Optics Letters, 2016, 14(7): 071403.