Fourier analysis of phase-shifting algorithms for amplitude measurement of interference fringe

被引：5

作者：

Wang, Qi ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China

[2] 15 Cascades Rd, Auckland 2010, New Zealand

来源：

APPLIED OPTICS | 2017年 / 56卷 / 15期

关键词：

INTERFEROMETRY; ERROR;

D O I：

10.1364/AO.56.004353

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper analyses the detuning error in determining the fringe amplitude with phase-shifting interferometry ( PSI) algorithms. The detuning error occurs when the phase-shift step size is not calibrated. The PSI algorithm is treated as a quadrature filter and the analysis is based on the filter function ( FF) of the PSI algorithm. A mathematical expression has been derived showing that the detuning error consists of a bias error and a 2. dependent error, where. is the fringe phase. Examples of PSI algorithms are investigated. Computer simulations are performed to check the theoretical detuning errors for the PSI algorithms. (C) 2017 Optical Society of America

引用

页码：4353 / 4357

页数：5

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