Far field irradiance profile control with high spatial frequency deformable mirror

Deen Wang; Dongxia Hu; Wanjun Dai; Ping Li; Junpu Zhao; Qiang Yuan; Feng Jing; Xiaoqun Li

doi:10.1117/12.882163

16 November 2010 Far field irradiance profile control with high spatial frequency deformable mirror

Deen Wang, Dongxia Hu, Wanjun Dai, Ping Li, Junpu Zhao, Qiang Yuan, Feng Jing, Xiaoqun Li

Proceedings Volume 7843, High-Power Lasers and Applications V; 784329 (2010) https://doi.org/10.1117/12.882163
Event: Photonics Asia 2010, 2010, Beijing, China

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.

Citation Download Citation

Deen Wang, Dongxia Hu, Wanjun Dai, Ping Li, Junpu Zhao, Qiang Yuan, Feng Jing, and Xiaoqun Li "Far field irradiance profile control with high spatial frequency deformable mirror", Proc. SPIE 7843, High-Power Lasers and Applications V, 784329 (16 November 2010); https://doi.org/10.1117/12.882163

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