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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17694–17699

Coherence properties of two fiber lasers coupled by mutual injection

Sandrine Auroux, Vincent Kermène, Agnès Desfarges-Berthelemot, and Alain Barthélémy  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 17694-17699 (2009)

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Phase locking of two fiber lasers is obtained by mutual injection. The coherence properties of this composite laser are analyzed. In the most general case, the radiations at the two output mirrors of the laser are not mutually coherent. The cross-correlation of the two emitted beams shows that an extra-cavity delay line is required to get stable and high visibility interference fringes. Such a laser configuration is attractive for coherent beam combining in the far field provided the multiple output beams are properly time delayed.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3290) Lasers and laser optics : Laser arrays
(140.3298) Lasers and laser optics : Laser beam combining
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 26, 2009
Revised Manuscript: June 16, 2009
Manuscript Accepted: July 4, 2009
Published: September 18, 2009

Sandrine Auroux, Vincent Kermène, Agnès Desfarges-Berthelemot, and Alain Barthélémy, "Coherence properties of two fiber lasers coupled by mutual injection," Opt. Express 17, 17694-17699 (2009)

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