Open AccessSelf-referenced multiple-beam interferometric method for robust phase calibration of spatial light modulator
Author(s) -
Yunhui Gao,
Rujia Li,
Liangcai Cao
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.034463
Subject(s) - optics , spatial light modulator , interferometry , calibration , phase modulation , robustness (evolution) , phase (matter) , holography , reference beam , spatial frequency , materials science , computer science , physics , phase noise , biochemistry , chemistry , quantum mechanics , gene
Phase-only liquid crystal spatial light modulator has wide ranging applications that require accurate phase retardance. The phase calibration of the spatial light modulator is therefore of vital importance. Available self-referenced calibration methods face the challenges of high time consumption, low efficiency, and low stability against the conditions. A self-referenced multiple-beam interferometric method is proposed to derive the global grayscale-phase response. As is presented theoretically and experimentally, the proposed method reduces the measuring time and improves the calibration efficiency by encoding multiple fringes in a single hologram. Results also show that the method is equally accurate when compared with traditional two-beam interferometric method, whereas providing a greater robustness against measuring errors since the standard deviation is only 56% of that of the traditional method.