Correction performance and control algorithm of micromachined membrane deformable mirror

li bangming; shen jianxin; liao wenhe; zhang yunhai

Volume 22 Issue 07

Jun. 2010

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li bangming, shen jianxin, liao wenhe, et al. Correction performance and control algorithm of micromachined membrane deformable mirror[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

li bangming, shen jianxin, liao wenhe, et al. Correction performance and control algorithm of micromachined membrane deformable mirror[J]. High Power Laser and Particle Beams, 2010, 22.

li bangming, shen jianxin, liao wenhe, et al. Correction performance and control algorithm of micromachined membrane deformable mirror[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

li bangming, shen jianxin, liao wenhe, et al. Correction performance and control algorithm of micromachined membrane deformable mirror[J]. High Power Laser and Particle Beams, 2010, 22.

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Correction performance and control algorithm of micromachined membrane deformable mirror

1.
College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;
2.
Suzhou 66 Uision Technology Co Ltd,Suzhou 215005,China

Publish Date: 2010-06-30

Abstract

Abstract

The correctable aberration modes space of the micromacined membrane deformable mirror(MMDM) is constructed through the singular value decomposition of the mirror’s influence function matrix. Analyzing the correction ability and range of MMDM for a set of orthogonal basis modes, a closed-loop iterative control algorithm for MMDM is introduced. By means of low-rank approximation of the influence function matrix, the algorithm can correct the aberration selectively by filtering out some aberration modes which can not be corrected easily. In experiments, the wavefront from a human eye is used as the incident wavefront of adaptive optics system. The range of the optimal correction mode number is determined by comparing the correction effects for human eye aberration with different numbers of m
- adaptive optics,
- micromachined membrane deformable mirror,
- correction performance,
- control algorithm,
- singular value decomposition

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