Paper Title:
Laser Diode Self-Mixing Interference Based on Phase Measurement Method
  Abstract

In order to improve the displacement measurement accuracy of the laser diode self-mixing interference (SMI), phase measurement method is introduced in the SMI signal analysis. In this paper, three modulation technique have been proposed: injection current modulation, external cavity length modulation and sinusoidal phase modulation. Measurement principle of the three modulation techinque are briefly explained. Design of the experimental system, measurement results of micro-displacement will be reported.

  Info
Periodical
Key Engineering Materials (Volumes 381-382)
Edited by
Wei Gao, Yasuhiro Takaya, Yongsheng Gao and Michael Krystek
Pages
247-250
DOI
10.4028/www.scientific.net/KEM.381-382.247
Citation
M. Wang, D. M. Guo, "Laser Diode Self-Mixing Interference Based on Phase Measurement Method", Key Engineering Materials, Vols. 381-382, pp. 247-250, 2008
Online since
June 2008
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Price
$32.00
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