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Proceedings Paper

Analysis of self-mixing interference signals in LD-pumped solid state laser using fast Fourier transform technique
Author(s): Yong Zhang; Yanguang Yu; Jianquan Yao; Peng Wang; Jin Chen
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Paper Abstract

Self-mixing interference (SMI) effects have been widely used in measuring the distance and displacement and velocity. Conventional methods are fringe counting and phase analysis. The former method has a precision of λ/10 in a multi-mode LD pumped solid-state laser (LDPSSL), while the latter has a precision of nearly λ/50 concerning the multiple reflections. Theoretical analysis and simulation calculations are presented.

Paper Details

Date Published: 20 September 2002
PDF: 5 pages
Proc. SPIE 4919, Advanced Materials and Devices for Sensing and Imaging, (20 September 2002); doi: 10.1117/12.471898
Show Author Affiliations
Yong Zhang, Tianjin Univ. and Hebei Univ. of Technology (China)
Yanguang Yu, Tianjin Univ. (China)
Jianquan Yao, Tianjin Univ. (China)
Peng Wang, Tianjin Univ. (China)
Jin Chen, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 4919:
Advanced Materials and Devices for Sensing and Imaging
Jianquan Yao; Yukihiro Ishii, Editor(s)

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