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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 16 — Jun. 1, 2012
  • pp: 3546–3551

Analysis of the effects of aberrations on coherent polarization beam combining of fiber laser beams

Pengfei Ma, Pu Zhou, Yanxing Ma, Rongtao Su, and Zejin Liu  »View Author Affiliations

Applied Optics, Vol. 51, Issue 16, pp. 3546-3551 (2012)

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In this paper, the influence of aberrations on coherent polarization beam combining (CPBC) of fiber laser beams is analyzed in detail for the first time to our knowledge. The expression of the coherently polarization combined output power is obtained, which contains the geometry and nongeometry factors of the CPBC system. The geometry and nongeometry aberrations are numerically studied to investigate their effects on the combining efficiency. It is found that to ensure the combining efficiency of a CPBC unit (we studied) to be more than 90%, the overlap error (the beams in the polarization beam combiner cannot be superposed entirely) should be controlled to be less than 0.45, the tilt error should be less than 2π/15rad, and the RMS value of the phase error should be limited to be within λ/10. The generalized methodology that we present offers a good reference for investigating the CPBC system in an extensive way.

© 2012 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3290) Lasers and laser optics : Laser arrays
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 7, 2011
Revised Manuscript: March 25, 2012
Manuscript Accepted: April 3, 2012
Published: May 31, 2012

Pengfei Ma, Pu Zhou, Yanxing Ma, Rongtao Su, and Zejin Liu, "Analysis of the effects of aberrations on coherent polarization beam combining of fiber laser beams," Appl. Opt. 51, 3546-3551 (2012)

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