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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 4 — Feb. 1, 2007
  • pp: 611–619

Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers

John R. Tucker, Aleksandar D. Rakić, Christopher J. O'Brien, and Andrei V. Zvyagin  »View Author Affiliations


Applied Optics, Vol. 46, Issue 4, pp. 611-619 (2007)
http://dx.doi.org/10.1364/AO.46.000611


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Abstract

We investigate the effect of coexisting transverse modes on the operation of self-mixing sensors based on vertical-cavity surface-emitting lasers (VCSELs). The effect of multiple transverse modes on the measurement of displacement and distance were examined by simulation and in laboratory experiment. The simulation model shows that the periodic change in the shape and magnitude of the self-mixing signal with modulation current can be properly explained by the different frequency-modulation coefficients of the respective transverse modes in VCSELs. The simulation results are in excellent agreement with measurements performed on single-mode and multimode VCSELs and on self-mixing sensors based on these VCSELs.

© 2007 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(280.3400) Remote sensing and sensors : Laser range finder
(280.3420) Remote sensing and sensors : Laser sensors

ToC Category:
Remote Sensing

History
Original Manuscript: May 8, 2006
Manuscript Accepted: September 22, 2006

Citation
John R. Tucker, Aleksandar D. Rakić, Christopher J. O'Brien, and Andrei V. Zvyagin, "Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers," Appl. Opt. 46, 611-619 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-4-611

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