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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 8 — Aug. 1, 2012
  • pp: 081402–

Experimental research on application of Hartmann micro-lens array in coherent beam combination of two-dimensional laser array

Xiaohua Wang, Qiang Fu, Linhai Huang, Feng Shen, and Changhui Rao  »View Author Affiliations


Chinese Optics Letters, Vol. 10, Issue 8, pp. 081402- (2012)


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Abstract

We demonstrate experimentally the application of a phase error detection method in the coherent beam combination (CBC) of a laser array. The method is based on the Hartmann micro-lens array. Both the piston and tilt errors can be detected and corrected simultaneously by combining this method with adaptive optics-correcting technology. The far-field intensity pattern of the combined beam has high energy concentration and good beam quality. The power encircled in the main lobe of the far-field pattern is 41.3%, and the contrast of the pattern reaches 81.8%. Experimental results show the great potential of the Hartmann phasing method for use in the CBC of a large number of laser beams.

© 2012 Chinese Optics Letters

OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(140.3298) Lasers and laser optics : Laser beam combining
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Lasers and Laser Optics

Citation
Xiaohua Wang, Qiang Fu, Linhai Huang, Feng Shen, and Changhui Rao, "Experimental research on application of Hartmann micro-lens array in coherent beam combination of two-dimensional laser array," Chin. Opt. Lett. 10, 081402- (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-8-081402

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