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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 1 — Jan. 29, 2008

Intracavity transverse modes controlled by a genetic algorithm based on Zernike mode coefficients

Ping Yang, MingWu Ao, Yuan Liu, Bing Xu, and WenHan Jiang  »View Author Affiliations

Optics Express, Vol. 15, Issue 25, pp. 17051-17062 (2007)

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A new adaptive optics (AO) system for controlling the mode profile of a diode-laser-pumped Nd:YAG solid laser has been set up in our laboratory. A 19-element piezoelectric deformable mirror (DM), which is used as the rear mirror of the solid-state laser, is controlled by a genetic algorithm (GA). To improve the system convergence rate, the GA optimizes the first 10 orders of Zernike mode coefficients rather than optimize 19 voltages on the DM. The transform matrix between the 19 voltages and the first 10 orders of Zernike mode coefficients is deduced. Comparative numerical results show that the convergence speed and the correction performance of the AO system based on optimizing Zernike mode coefficients is far better than that of optimizing voltages. Moreover, experimental results showed that this AO system could change TEM10, TEM11, and TEM20 transverse modes into a TEM00 mode successfully.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Adaptive Optics

Original Manuscript: September 4, 2007
Revised Manuscript: October 22, 2007
Manuscript Accepted: October 26, 2007
Published: December 5, 2007

Virtual Issues
Vol. 3, Iss. 1 Virtual Journal for Biomedical Optics

Ping Yang, MingWu Ao, Yuan Liu, Bing Xu, and WenHan Jiang, "Intracavity transverse modes controlled by a genetic algorithm based on Zernike mode coefficients," Opt. Express 15, 17051-17062 (2007)

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