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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 22 — Aug. 1, 2011
  • pp: 4389–4392

Adaptive conversion of a high-order mode beam into a near-diffraction-limited beam

Haichuan Zhao, Xiaolin Wang, Haotong Ma, Pu Zhou, Yanxing Ma, Xiaojun Xu, and Yijun Zhao  »View Author Affiliations

Applied Optics, Vol. 50, Issue 22, pp. 4389-4392 (2011)

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We present a new method for efficiently transforming a high-order mode beam into a nearly Gaussian beam with much higher beam quality. The method is based on modulation of phases of different lobes by stochastic parallel gradient descent algorithm and coherent addition after phase flattening. We demonstrate the method by transforming an LP 11 mode into a nearly Gaussian beam. The experimental results reveal that the power in the diffraction-limited bucket in the far field is increased by more than a factor of 1.5.

© 2011 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 10, 2011
Revised Manuscript: May 30, 2011
Manuscript Accepted: May 30, 2011
Published: July 27, 2011

Haichuan Zhao, Xiaolin Wang, Haotong Ma, Pu Zhou, Yanxing Ma, Xiaojun Xu, and Yijun Zhao, "Adaptive conversion of a high-order mode beam into a near-diffraction-limited beam," Appl. Opt. 50, 4389-4392 (2011)

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