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Proceedings Paper

Two schemes of modulation-free frequency stabilization of grating-external-cavity diode laser via cesium sub-Doppler spectra
Author(s): Shubin Yan; Zhijing Du; Haijing Yang; Tiancai Zhang; Junmin Wang
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Paper Abstract

We report two methods of modulation-free frequency stabilization of a laser to sub-Doppler atomic absorption line. The first one employs the magnetically induced sub-Doppler dichroism in cesium vapor cell based on Zeeman effect. The second one utilizes two acousto-optical modulators (AOM) as well as sub-Doppler spectra to generate dispersion-like signal. We compared the residual frequency fluctuation in preliminary stabilization with the case of free running. These two schemes can avoid the additional frequency noise as well as intensity noise due to the direct frequency dither on laser source.

Paper Details

Date Published: 23 December 2005
PDF: 8 pages
Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 602811 (23 December 2005); doi: 10.1117/12.667166
Show Author Affiliations
Shubin Yan, Shanxi Univ. (China)
Zhijing Du, Shanxi Univ. (China)
Haijing Yang, Shanxi Univ. (China)
Tiancai Zhang, Shanxi Univ. (China)
Junmin Wang, Shanxi Univ. (China)

Published in SPIE Proceedings Vol. 6028:
ICO20: Lasers and Laser Technologies
Y. C. Chen; Dianyuan Fan; Chunqing Gao; Shouhuan Zhou, Editor(s)

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