23 December 2005 Two schemes of modulation-free frequency stabilization of grating-external-cavity diode laser via cesium sub-Doppler spectra
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Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 602811 (2005) https://doi.org/10.1117/12.667166
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China
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.
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Shubin Yan, Shubin Yan, Zhijing Du, Zhijing Du, Haijing Yang, Haijing Yang, Tiancai Zhang, Tiancai Zhang, Junmin Wang, Junmin Wang, } "Two schemes of modulation-free frequency stabilization of grating-external-cavity diode laser via cesium sub-Doppler spectra", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 602811 (23 December 2005); doi: 10.1117/12.667166; https://doi.org/10.1117/12.667166
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