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Optics Letters

Optics Letters


  • Vol. 17, Iss. 11 — Jun. 1, 1992
  • pp: 819–821

Fiber-optic Doppler velocimeter that incorporates active optical feedback from a diode laser

W. M. Wang, W. J. O. Boyle, K. T. V. Grattan, and A. W. Palmer  »View Author Affiliations

Optics Letters, Vol. 17, Issue 11, pp. 819-821 (1992)

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A fiber-optic Doppler velocimeter that incorporates the effect of self-mixing in a diode laser is described. A theoretical model, based on self-mixing interference theory, is presented, and a simple experimental arrangement is constructed. The results of the experimental research are found to be in good agreement with the theoretical analysis. A Doppler velocity of as much as 3 m/s was measured directly, and a good linear relationship between the Doppler velocity and the Doppler-shifted frequency was obtained, which can be used to determine the speed of a moving object.

© 1992 Optical Society of America

Original Manuscript: November 4, 1991
Published: June 1, 1992

W. M. Wang, W. J. O. Boyle, K. T. V. Grattan, and A. W. Palmer, "Fiber-optic Doppler velocimeter that incorporates active optical feedback from a diode laser," Opt. Lett. 17, 819-821 (1992)

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