Analysis of self-mixing interference signals in LD-pumped solid state laser using fast Fourier transform technique

Yong Zhang; Yanguang Yu; Jianquan Yao; Peng Wang; Jin Chen

doi:10.1117/12.471898

20 September 2002 Analysis of self-mixing interference signals in LD pumped solid- state laser using fast Fourier transform technique

Yong Zhang, Yanguang Yu, Jianquan Yao, Peng Wang, Jin Chen

Author Affiliations +

Proceedings Volume 4919, Advanced Materials and Devices for Sensing and Imaging; (2002) https://doi.org/10.1117/12.471898
Event: Photonics Asia, 2002, Shanghai, China

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.

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Yong Zhang, Yanguang Yu, Jianquan Yao, Peng Wang, and Jin Chen "Analysis of self-mixing interference signals in LD pumped solid- state laser using fast Fourier transform technique", Proc. SPIE 4919, Advanced Materials and Devices for Sensing and Imaging, (20 September 2002); https://doi.org/10.1117/12.471898

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