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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 8 — Aug. 1, 2007
  • pp: 1716–1720

Spectral beam combining of Yb-doped fiber lasers with high efficiency

Sandro Klingebiel, Fabian Röser, Bülend Ortaç, Jens Limpert, and Andreas Tünnermann  »View Author Affiliations


JOSA B, Vol. 24, Issue 8, pp. 1716-1720 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001716


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Abstract

Spectral beam combining is a power scaling concept for fiber lasers, where several individual laser beams with different wavelengths are overlapped utilizing a dispersive element. We present a combination of three master-oscillator power-amplifier fiber laser systems to a total power of 153 W . Due to the employment of single-polarization low-nonlinearity photonic crystal fibers in the main amplification stages a combining efficiency as high as 95% has been realized. The measured beam quality of M 2 = 1.2 for each laser does not decrease for the combined beam. Thus this setup provides excellent opportunities for brightness enhancement. Additional considerations for further increase in power are made.

© 2007 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Fiber Lasers and Amplifiers

History
Original Manuscript: November 2, 2006
Revised Manuscript: January 31, 2007
Manuscript Accepted: January 31, 2007
Published: July 19, 2007

Citation
Sandro Klingebiel, Fabian Röser, Bülend Ortaç, Jens Limpert, and Andreas Tünnermann, "Spectral beam combining of Yb-doped fiber lasers with high efficiency," J. Opt. Soc. Am. B 24, 1716-1720 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-8-1716

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