Closed-loop stable control of two deformable mirrors for compensation of amplitude and phase fluctuations

被引：37

作者：

Barchers, JD ^{[1
]}

机构：

[1] USAF, Res Lab, Directed Energy Directorate, Starfire Opt Range, Kirtland AFB, NM 87117 USA

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2002年 / 19卷 / 05期

关键词：

D O I：

10.1364/JOSAA.19.000926

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for closed-loop stable control of two deformable mirrors for compensation of both amplitude and phase fluctuations is described. A generic implementation is described as well as an implementation that integrates the concept behind a point diffraction interferometer with a two-deformable-mirror system. The relationship of the closed-loop control algorithm to previously developed open-loop iterative algorithms is described. Simulation results are presented that indicate that the system is stable and provides superior performance over that of a single-deformable-mirror system. The impact of finite servo bandwidth on control of two deformable mirrors is evaluated by means of wave optical simulation, and it is found that to achieve a performance improvement attributable to compensation of amplitude fluctuations, the bandwidth of the two-deformable-mirror system must be at least twice the Greenwood frequency. (C) 2002 Optical Society of America.

引用

页码：926 / 945

页数：20

共 35 条

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