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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 4 — Feb. 15, 2008
  • pp: 384–386

Efficient power scaling of laser radiation by spectral beam combining

Armen Sevian, Oleksiy Andrusyak, Igor Ciapurin, Vadim Smirnov, George Venus, and Leonid Glebov  »View Author Affiliations

Optics Letters, Vol. 33, Issue 4, pp. 384-386 (2008)

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The possibility of achieving multikilowatt laser radiation by spectrally combining beams using volume Bragg gratings (VBGs) is shown. The VBGs recorded in a photothermorefractive glass exhibit long-term stability of all its parameters in high-power laser beams with power density > 1 MW cm 2 in the cw beam of total power on a kilowatt level. We consider an architecture-specific beam-combining scheme and address the cross-talk minimization problem based on optimal channel positioning. Five-channel high efficiency spectral beam combining resulted in a > 750 W near-diffraction-limited cw beam has been demonstrated experimentally.

© 2008 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(050.7330) Diffraction and gratings : Volume gratings
(140.3460) Lasers and laser optics : Lasers
(160.2900) Materials : Optical storage materials
(230.1480) Optical devices : Bragg reflectors
(260.1960) Physical optics : Diffraction theory

ToC Category:
Optical Devices

Original Manuscript: August 20, 2007
Revised Manuscript: December 3, 2007
Manuscript Accepted: December 16, 2007
Published: February 14, 2008

Armen Sevian, Oleksiy Andrusyak, Igor Ciapurin, Vadim Smirnov, George Venus, and Leonid Glebov, "Efficient power scaling of laser radiation by spectral beam combining," Opt. Lett. 33, 384-386 (2008)

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