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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 21 — Oct. 17, 2007
  • pp: 14251–14256

Simple coherent polarization manipulation scheme for generating high power radially polarized beam

P. B. Phua and W. J. Lai  »View Author Affiliations

Optics Express, Vol. 15, Issue 21, pp. 14251-14256 (2007)

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We present a simple novel scheme that converts a Gaussian beam into an approximated radially polarized beam using coherent polarization manipulation together with Poynting walk-off in birefringent crystals. Our scheme alleviates the interferometric stability required by previous schemes that implemented this coherent mode summation using Mach-Zehnder-like interferometers. A symmetrical arrangement of two walk-off crystals with a half-wave plate, allows coherence control even when the laser has short temporal coherence length. We generated 14 watts of radially polarized beam from an Ytterbium fiber laser, only limited by the available fiber laser power.

© 2007 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(260.1440) Physical optics : Birefringence

ToC Category:
Physical Optics

Original Manuscript: September 4, 2007
Revised Manuscript: October 8, 2007
Manuscript Accepted: October 8, 2007
Published: October 12, 2007

P. B. Phua and W. J. Lai, "Simple coherent polarization manipulation scheme for generating high power radially polarized beam," Opt. Express 15, 14251-14256 (2007)

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