Measurement error caused by quarter-wave plate in the dynamic interferometer: Theory and correction method

Quarter-wave plate (QWP) is one of the most important components of dynamic interferometer and its retardation can influence the measurement accuracy, which is usually manifested as periodic ripple error in the measurement results. Based on Jones matrix, the error formula is deduced in this paper, a...

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Bibliographic Details
Published inOptics communications Vol. 502; p. 127406
Main Authors Zhu, Ronggang, Zhou, Jianjie, Li, Bo, Huang, Ya
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.2022
Subjects
Dynamic interferometer
Micropolarizer array
Optical measurement
Quarter-wave plate
Retardation error
Optical measurement
Retardation error
Micropolarizer array
Dynamic interferometer
Quarter-wave plate
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Summary:Quarter-wave plate (QWP) is one of the most important components of dynamic interferometer and its retardation can influence the measurement accuracy, which is usually manifested as periodic ripple error in the measurement results. Based on Jones matrix, the error formula is deduced in this paper, and the error correction method by rotating the half-wave plate (HWP) to change the intensity distribution in the four phase-shifted interferograms is proposed. In the experiment, the ripple error can be effectively suppressed when the background intensity of four interferograms tend to be the same. The performance of dynamic interferometer can be significantly improved through the proposed method.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2021.127406