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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 8, Iss. 1 — Jan. 1, 2010
  • pp: 45–47

Flat-top laser beam generated by coherent beam combining of Gaussian lasers

Kun Gao, Lixin Xu, Rui Zheng, Guoliang Chen, Huan Zheng, and Hai Ming  »View Author Affiliations

Chinese Optics Letters, Vol. 8, Issue 1, pp. 45-47 (2010)

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We present a flat-top laser beam generation scheme using coherent beam combining of hexagonally arranged Gaussian lasers. To produce a beam with a flat-top profile, we optimize the amplitude and phase of each unit laser using the least-square method. Simulation results show that with 13 unit lasers, a beam with the flatness of less than 1% in the optimizing region can be achieved. The main lobe contains over 95% of the total power. The scheme requires no external beam shaping element and has the potential to be designed for high-power applications.

© 2010 Chinese Optics Letters

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3298) Lasers and laser optics : Laser beam combining

Kun Gao, Lixin Xu, Rui Zheng, Guoliang Chen, Huan Zheng, and Hai Ming, "Flat-top laser beam generated by coherent beam combining of Gaussian lasers," Chin. Opt. Lett. 8, 45-47 (2010)

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