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Algorithms to Eliminate the Influence of Non-uniform intensity Distributions on Wavefront Reconstruction by Quadri-wave Lateral Shearing Interferometers

Author(s): Chen, XJ (Chen, Xiao-jun); Dong, LZ (Dong, Li-zhi); Wang, S (Wang, Shuai); Yang, P (Yang, Ping); Xu, B (Xu, Bing)

Source: OPTICS COMMUNICATIONS  Volume: 402  Pages: 276-284  DOI: 10.1016/j.optcom.2017.05.058  Published: NOV 1 2017  

Abstract: In quadri-wave lateral shearing interferometry (QWLSI), when the intensity distribution of the incident light wave is non-uniform, part of the information of the intensity distribution will couple with the wavefront derivatives to cause wavefront reconstruction errors. In this paper, we propose two algorithms to reduce the influence of a non-uniform intensity distribution on wavefront reconstruction. Our simulation results demonstrate that the reconstructed amplitude distribution (RAD) algorithm can effectively reduce the influence of the intensity distribution on the wavefront reconstruction and that the collected amplitude distribution (CAD) algorithm can almost eliminate it. (C) 2017 Elsevier B.V. All rights reserved.

IDS Number: FE1NQ

ISSN: 0030-4018

eISSN: 1873-0310

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