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Proceedings Paper

Self-mixing laser Doppler velocimeter based on dual frequency lasers
Author(s): Gang Liu; Shulian Zhang
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Paper Abstract

A self-mixing laser Doppler velocimeter is designed based on dual frequency laser. We can receive two beat signals and analyze them in frequency domain. The value of Doppler frequency shift is half of the distance between the two components in the power spectrum while the sign of Doppler frequency shift can be easily determined by the relative position of the two components in the power spectrum.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.571180
Show Author Affiliations
Gang Liu, Tsinghua Univ. (China)
Shulian Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5633:
Advanced Materials and Devices for Sensing and Imaging II
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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