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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 2 — Jan. 17, 2011
  • pp: 1510–1515

Phase locking a fiber laser array via diffractive coupling

Eitan Ronen and Amiel A. Ishaaya  »View Author Affiliations

Optics Express, Vol. 19, Issue 2, pp. 1510-1515 (2011)

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We demonstrate phase locking of a linear array of seven fiber lasers via diffractive coupling. Coupling between the lasers is achieved by a common output coupler positioned at a quarter Talbot distance from the lasers. The output beams are anti-phase locked with a measured far-field fringe contrast of 82%, and their total output power is higher than that obtained when the lasers operate individually. We measure an exponential phase decorrelation between distant lasers in the array, and discuss its fundamental limitation on scalability of this and similar local coupling methods.

© 2011 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 5, 2010
Revised Manuscript: November 18, 2010
Manuscript Accepted: January 3, 2011
Published: January 13, 2011

Eitan Ronen and Amiel A. Ishaaya, "Phase locking a fiber laser array via diffractive coupling," Opt. Express 19, 1510-1515 (2011)

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