Phase shift selection for two-step generalized phase-shifting interferometry

被引：8
|
作者：
Xu, Xiangfeng [1 ]
Cai, Luzhong [2 ]
Yuan, Hongguang [1 ]
Zhang, Qian [1 ]
Lu, Guangcan [1 ]
Wang, Chu [1 ]
机构：
[1] China Univ Petr E China, Coll Phys Sci & Technol, Qingdao 266555, Peoples R China
[2] Shandong Univ, Dept Opt, Jinan 250100, Peoples R China
来源：
APPLIED OPTICS | 2011年 / 50卷 / 34期
基金：
中国国家自然科学基金;
关键词：
WAVE-FRONT RECONSTRUCTION; ERROR; ALGORITHM; CALIBRATION;
D O I：
10.1364/AO.50.00H171
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A phase shift selection method is proposed to design algorithms immune against phase shift errors in two-step generalized phase-shifting interferometry. A general formula for wavefront reconstruction error is derived, and its specific expressions for two common errors are also given. Calculation results suggest that the proper range of phase shift for general application is about from 0.5 to 2.0 rad for both the fixed and linear phase shift errors. Computer simulations have demonstrated the effectiveness of this phase shift selection method by decreasing the wave reconstruction errors to one-fifth. (C) 2011 Optical Society of America
引用
收藏
页码：H171 / H176
页数：6
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