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Published on: February 12, 2013
Application of eigenmode in the adaptive optics system based on a micromachined membrane deformable mirror
Ende Li1, Yun Dai, Haiying Wang
1Institute of Optics and Electronics, Chinese Academy of Science, Chengdu 610209, China. li_ende@yahoo.com.cn
Abstract:
The construction process and characteristics of a deformable mirror eigenmode are introduced. The eigenmode of a 37-element micromachined membrane deformable mirror (MMDM) from OKO, Ltd. is analyzed. The Gaussian-Seidel low-order aberrations are fitted with eigenmodes as basic functions. An experimental adaptive optics (AO) system is constructed with the MMDM as the wavefront corrector, a deformable mirror eigenmode as the wavefront control algorithm, and a Shack-Hartmann wavefront sensor as the wavefront detector. The experimental results demonstrate that the deformable mirror eigenmode can act as the wavefront control algorithm for the AO system based on the MMDM.

