Liquid crystal phase modulator for adaptive optics. Temporal performance characterization

被引:43
作者
Kudryashov, AV
Gonglewski, J
Browne, S
Highland, R
机构
[1] OPT SCI CO,ANAHEIM,CA 92825
[2] KAMAN SCI CORP,ALBUQUERQUE,NM 87112
关键词
phase modulator; liquid crystal; aberrations;
D O I
10.1016/S0030-4018(97)00256-3
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The study of the temporal performance of a nematic liquid crystal phase modulator with 69 phase retardance cells is presented. The change of Strehl ratio for defocus under static and dynamic conditions is discussed. It is observed that the rate of arbitrary phase modulation is limited to about 1.7 Hz with this device. Finally, suggestions for improving the bandwidth are given. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码:247 / 253
页数:7
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