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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 20 — Oct. 4, 2004
  • pp: 4929–4934

Coherent addition of spatially incoherent light beams

Amiel A. Ishaaya, Liran Shimshi, Nir Davidson, and Asher A. Friesem  »View Author Affiliations

Optics Express, Vol. 12, Issue 20, pp. 4929-4934 (2004)

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We report on efficient coherent addition of spatially incoherent multimode laser beam distributions. Such addition is demonstrated within a multi-channel laser resonator configuration, obtaining more than 90% combining efficiency while preserving the good beam quality. We explain the rather surprising physical phenomenon of coherently adding spatially incoherent light by self-phase-locking of each of the modal components within the multimode beams. Our approach could lead to significantly higher output powers concomitantly with good beam qualities than were hitherto possible in laser systems.

© 2004 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(140.3410) Lasers and laser optics : Laser resonators

ToC Category:
Research Papers

Original Manuscript: August 10, 2004
Revised Manuscript: September 23, 2004
Published: October 4, 2004

Amiel Ishaaya, Liran Shimshi, Nir Davidson, and Asher Friesem, "Coherent addition of spatially incoherent light beams," Opt. Express 12, 4929-4934 (2004)

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