A new adaptive beam intensity shaping technique based on the combination of a 19-element piezo-electricity deformable mirror (DM) and a global genetic algorithm is presented. This technique can adaptively adjust the voltages of the 19 actuators on the DM to reduce the difference between the target beam shape and the actual beam shape. Numerical simulations and experimental results show that within the stroke range of the DM, this technique can be well used to create the given beam intensity profiles on the focal plane.
© 2007 Chinese Optics Letters
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(140.0140) Lasers and laser optics : Lasers and laser optics
(220.1000) Optical design and fabrication : Aberration compensation
Ping Yang, Yuan Liu, Wei Yang, Minwu Ao, Shijie Hu, Bing Xu, and Wenhan Jiang, "An adaptive laser beam shaping technique based on a genetic algorithm," Chin. Opt. Lett. 5, 497-500 (2007)