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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 7 — Apr. 1, 2009
  • pp: 863–865

All-fiber 50 W coherently combined passive laser array

Baishi Wang, Eric Mies, Monica Minden, and Anthony Sanchez  »View Author Affiliations

Optics Letters, Vol. 34, Issue 7, pp. 863-865 (2009)

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We experimentally demonstrate 50 W of spontaneously phase-locked two-laser array in an all-fiber and all-passive configuration using large-mode-area (LMA) polarization-maintaining fiber laser cavities and an LMA fiber coupler. We show that both laser cavity length difference and fiber nonlinearity play an important role in achieving efficient and stable coherent beam combining. In addition, we compare the difference in coherent combining efficiency by using fibers with different mode-field diameters and discuss the underlying phase-locking mechanism and its power scalability.

© 2009 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 23, 2008
Revised Manuscript: January 30, 2009
Manuscript Accepted: February 2, 2009
Published: March 16, 2009

Baishi Wang, Eric Mies, Monica Minden, and Anthony Sanchez, "All-fiber 50 W coherently combined passive laser array," Opt. Lett. 34, 863-865 (2009)

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