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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 708–710

Dammann-grating-based passive phase locking by an all-optical feedback loop

Yifeng Yang, Houkang Liu, Ye Zheng, Man Hu, Chi Liu, Yunfeng Qi, Bing He, Jun Zhou, Yunrong Wei, and Qihong Lou  »View Author Affiliations


Optics Letters, Vol. 39, Issue 3, pp. 708-710 (2014)
http://dx.doi.org/10.1364/OL.39.000708


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Abstract

A Dammann grating is used as a spatial filter for a passive coherent beam combination (CBC) of three Yb-doped fiber amplifiers with an all-optical feedback loop. Using this diffractive-optics-based spatial filtering technique, we demonstrate CBC with 20 W output power, and the visibility of the far-field interference pattern is up to 88.7%. Measurements suggest that this approach is robust with respect to laboratory environment perturbations, and it can scale to high powers and large arrays.

© 2014 Optical Society of America

OCIS Codes
(140.3290) Lasers and laser optics : Laser arrays
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 5, 2013
Revised Manuscript: December 14, 2013
Manuscript Accepted: December 31, 2013
Published: January 31, 2014

Citation
Yifeng Yang, Houkang Liu, Ye Zheng, Man Hu, Chi Liu, Yunfeng Qi, Bing He, Jun Zhou, Yunrong Wei, and Qihong Lou, "Dammann-grating-based passive phase locking by an all-optical feedback loop," Opt. Lett. 39, 708-710 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-3-708

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