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Proceedings Paper

Far field irradiance profile control with high spatial frequency deformable mirror
Author(s): Deen Wang; Dongxia Hu; Wanjun Dai; Ping Li; Junpu Zhao; Qiang Yuan; Feng Jing; Xiaoqun Li
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Paper Abstract

A novel method based on diffraction theory to control the far-field irradiance profile by deformable mirror is presented. Special near-field phase which determines the contour of the focal spot is obtained by a high spatial frequency deformable mirror. Numerical simulations show that, we can control the far-field intensity envelope as CPP by adopting adaptive optics technique when the spatial resolution of deformable mirror is high enough, here 16×16 actuators in 320mm×320mm aperture. The coupling coefficient is an important factor influencing control effect, and its best value range is round 0.6.

Paper Details

Date Published: 16 November 2010
PDF: 7 pages
Proc. SPIE 7843, High-Power Lasers and Applications V, 784329 (16 November 2010); doi: 10.1117/12.882163
Show Author Affiliations
Deen Wang, Chinese Academy of Engineering Physics (China)
Dongxia Hu, Chinese Academy of Engineering Physics (China)
Wanjun Dai, Chinese Academy of Engineering Physics (China)
Ping Li, Chinese Academy of Engineering Physics (China)
Junpu Zhao, Chinese Academy of Engineering Physics (China)
Qiang Yuan, Chinese Academy of Engineering Physics (China)
Feng Jing, Chinese Academy of Engineering Physics (China)
Xiaoqun Li, Chinese Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 7843:
High-Power Lasers and Applications V
Upendra N. Singh; Dianyuan Fan; Jianquan Yao; Robert F. Walter, Editor(s)

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