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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 23 — Dec. 1, 2008
  • pp: 2746–2748

Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser

Mathieu Laroche, Célia Bartolacci, Guillaume Lesueur, Hervé Gilles, and Sylvain Girard  »View Author Affiliations


Optics Letters, Vol. 33, Issue 23, pp. 2746-2748 (2008)
http://dx.doi.org/10.1364/OL.33.002746


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Abstract

We describe an all-fiberized coherent detection system at 1.55 μ m using heterodyne self-mixing modulation in a distributed-feedback fiber laser. Frequency shifting of the optical feedback is based on serrodyne phase modulation with an integrated electro-optic modulator, which is a significant advance in the simplification of the self-mixing detection scheme for class B lasers. Accurate measurement of the optical phase difference between the laser electric field and the backscattered electric field demonstrates nanometric displacement detection on noncooperative targets.

© 2008 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: July 25, 2008
Revised Manuscript: October 8, 2008
Manuscript Accepted: October 10, 2008
Published: November 19, 2008

Citation
Mathieu Laroche, Célia Bartolacci, Guillaume Lesueur, Hervé Gilles, and Sylvain Girard, "Serrodyne optical frequency shifting for heterodyne self-mixing in a distributed-feedback fiber laser," Opt. Lett. 33, 2746-2748 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-23-2746


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