title: Laser frequency stabilization using a dispersive line shape induced by Doppler Effect.
abstract: We report a simple and robust Doppler-free spectroscopic technique to stabilize a laser frequency to the atomic transition. By employing Doppler Effect on the atomic beam, we obtained a very stable dispersive signal with a high signal-to-noise ratio and no Doppler-background, which served as an error signal to electronically stabilize a laser frequency without modulation. For validating the performance of this technique, we locked a DFB laser to the (133)Cs D2 line and observed an efficient suppression of the frequency noise and a long-term reduction of the frequency drifts in a laboratory environment.
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.forename: Xianghui
authors.initials: X
authors.lastname: Qi
authors.forename: Shuyong
authors.initials: S
authors.lastname: Liu
authors.forename: Jiachen
authors.initials: J
authors.lastname: Yu
authors.forename: Xuzong
authors.initials: X
authors.lastname: Chen