Obtaining the curve "phase shift vs gray level" of a spatial light modulator Holoeye LC2012

B. Villalobos-Mendoza, F.S. Granados-Agustín, D. Aguirre-Aguirre, A. Cornejo-Rodríguez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


In this work, the process to obtain the curve "Graylevel vs phase shift" of a transmissive spatial light modulator (SLM) HoloeyeLC2012 is described. This work arises from the need that exists for having a new optical surface testing method at INAOE's Optical Workshop. The SLM was placed in one arm of a Twyman-Green interferometer. The fringe shifts in the interference patterns were produced by displaying the different gray levels in the SLM. The gray level images displayed in the SLM were divided in two equal parts, the upper part was varying the different gray levels from 0 to 255 and the lower part stayed fixed with a gray level of 0 as reference. We show the different phase shifts and the experimental interferograms. From this analysis it was found out that a noticeable phase shift can be obtained from the 50 to the 190 gray levels.

Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
Publication statusPublished - 28 Apr 2015

Publication series

NameJournal of Physics: Conference Series
PublisherIOP Publishing Ltd.
ISSN (Print)1742-6588

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

Copyright 2018 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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