Design of Pound-Drever-Hall laser frequency stabilization system without phase shifter

Juan Su; Mingxing Jiao; Junhong Xing; Zhe Li

doi:10.1117/12.2087005

6 March 2015 Design of Pound-Drever-Hall laser frequency stabilization system without phase shifter

Juan Su, Mingxing Jiao, Junhong Xing, Zhe Li

Proceedings Volume 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation; 94460I (2015) https://doi.org/10.1117/12.2087005
Event: International Symposium on Precision Engineering Measurement and Instrumentation, 2014, Changsha/Zhangjiajie, China

Abstract

The Pound-Drever-Hall (PDH) laser frequency stabilization is a wide spread adopted technique for narrow linewidth and ultra-stable lasers, and a phase shifter is an important part in a traditional PDH frequency stabilization system. A PDH laser frequency stabilization system without phase shifter was proposed, in which quadrature coherent detection method was used to extract the frequency drifts. Orthogonal reference signals are generated using direct digital frequency synthesizer (DDS) and mixed with the output of a photo-detector. Over-sampling technique and cumulative average algorithm were used to improve the detection resolution and SNR, orthogonal phase sensitive detection algorithm was adopted to obtain the frequency drifts. Both the quadrature demodulation system structure and the signal processing methods were adopted, the systematic detection error is reduced, the anti-noise performance is raised and long term frequency stability is improved with the PDH laser frequency stabilization system without phase shifter.

Citation Download Citation

Juan Su, Mingxing Jiao, Junhong Xing, and Zhe Li "Design of Pound-Drever-Hall laser frequency stabilization system without phase shifter", Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94460I (6 March 2015); https://doi.org/10.1117/12.2087005

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