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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 4 — Feb. 15, 2012
  • pp: 455–457

Group delay locking of coherently combined broadband lasers

S. Benjamin Weiss, Mark E. Weber, and Gregory D. Goodno  »View Author Affiliations


Optics Letters, Vol. 37, Issue 4, pp. 455-457 (2012)
http://dx.doi.org/10.1364/OL.37.000455


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Abstract

We demonstrate a method for single-detector coherent sensing and automated coalignment of group delays in a coherently combined laser array, enabling robust coherent combining of broadband sources despite initial path mismatches exceeding the laser coherence length. The method is based on Fourier-domain filtering of the coherently combined laser beam to extract error signals, and it is equally applicable to controlling both spatial and temporal misalignments.

© 2012 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Coherence and Statistical Optics

History
Original Manuscript: November 18, 2011
Manuscript Accepted: December 9, 2011
Published: February 3, 2012

Citation
S. Benjamin Weiss, Mark E. Weber, and Gregory D. Goodno, "Group delay locking of coherently combined broadband lasers," Opt. Lett. 37, 455-457 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-455

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