Iterative phase-shifting algorithm immune to random phase shifts and tilts

Yi Chun Chen, Po Chih Lin, Chung Min Lee, Chao Wen Liang

研究成果: 雜誌貢獻期刊論文同行評審

49 引文 斯高帕斯(Scopus)

摘要

An iterative phase-shifting algorithm based on the least-squares principle is developed to overcome the random piston and tilt wavefront errors generated from the phase shifter. The algorithm iteratively calculates the phase distribution and the phase-shifting map to minimize the sum of squared errors in the interferograms. The performance of the algorithm is evaluated via computer simulations and validated by the Fizeau interferometer measurements. The results show that the proposed algorithm has a fast convergence rate and satisfactory phase-estimation accuracy, improving the measurement precision of the phase-shifting interferometers with significant phase-shifter errors.

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頁(從 - 到)3381-3386
頁數6
期刊Applied Optics
52
發行號14
DOIs
出版狀態已出版 - 10 5月 2013

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