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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

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

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.

Original languageEnglish
Pages (from-to)488-492
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4919
DOIs
StatePublished - 2002
Externally publishedYes
EventAdvanced Materials and Devices for Sensing and Imaging - Shanghai, China
Duration: 17 Oct 200218 Oct 2002

Keywords

  • Displacement
  • Distance
  • Fast fourier transform technique
  • LD pumped solid-state laser
  • Self-mixing interference effect

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