Low-frequency wavelength modulation spectroscopy using an external-cavity diode laser

Liantuan Xiao; Chang-yong Li; Qian Li; Suotang Jia; Guosheng Zhou

doi:10.1117/12.361165

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8 September 1999 Low-frequency wavelength modulation spectroscopy using an external-cavity diode laser

Liantuan Xiao, Chang-yong Li, Qian Li, Suotang Jia, Guosheng Zhou

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Proceedings Volume 3862, 1999 International Conference on Industrial Lasers; (1999) https://doi.org/10.1117/12.361165
Event: International Symposium on Industrial Lasers, 1999, Wuhan, China

Abstract

A low-frequency wavelength modulation spectroscopy is acquired with a Harvey-Myatt external-cavity diode laser. The wavelength modulation is achieved using the voltage tuning by scanning the piezoelectric stepper motor with rotating of the end mirror in the laser cavity. With optimum modulation frequency 1-kHz and harmonic detection direct absorption experiments with cesium D₂ line were carried out. We find that 6f-harmonic detection is best here with the signal-to-noise voltage ratio being 460.

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Liantuan Xiao, Chang-yong Li, Qian Li, Suotang Jia, and Guosheng Zhou "Low-frequency wavelength modulation spectroscopy using an external-cavity diode laser", Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); https://doi.org/10.1117/12.361165

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