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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 14 — Jul. 15, 2006
  • pp: 2148–2150

Coherent polarization locking with near-perfect combining efficiency

P. B. Phua and Yuan Liang Lim  »View Author Affiliations


Optics Letters, Vol. 31, Issue 14, pp. 2148-2150 (2006)
http://dx.doi.org/10.1364/OL.31.002148


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Abstract

We demonstrate the coherent locking of two orthogonal polarized lasers by using polarization selective loss. The two orthogonal polarizations are locked coherently to produce a resultant polarization state that sees minimal cavity loss. In contrast to the Michelson locking schemes, our scheme has the advantage of easy tunability, which helps to routinely achieve near-perfect ( > 99 % ) combining efficiency even when the power of the two arms is highly imbalanced and is varied from a power ratio of unity to > 5 . We also demonstrate an interesting phenomenon in which a miniscule injection of an antiphase field component from one arm into another can significantly inhibit the locking mechanism.

© 2006 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(140.3410) Lasers and laser optics : Laser resonators

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 13, 2006
Revised Manuscript: April 25, 2006
Manuscript Accepted: April 25, 2006

Citation
P. B. Phua and Yuan Liang Lim, "Coherent polarization locking with near-perfect combining efficiency," Opt. Lett. 31, 2148-2150 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-14-2148


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