Laser & Optoelectronics Progress, Volume. 56, Issue 5, 051403(2019)

Wavefront Simulation and Wavefront Correction of Liquid Crystal Spatial Light Modulator

Xizheng Ke and Kena Han*
Author Affiliations
  • School of Automation and Information Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China
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    Figures & Tables(11)
    Structure of reflective LC-SLM
    LC-SLM grayscale image loading and wavefront simulation diagram
    Schematic of wavefront conjugation
    Distorted and corrected spot simulation. (a) Three-dimensional image and (b) two-dimensional grayscale image of distorted spot; (c) three-dimensional image and (d) two-dimensional grayscale image of corrected spot
    Schematic of static wavefront correction using wavefront conjugation
    Optical path diagram of phase modulation experiment of SLM
    Phase modulation experimental process of SLM. (a) Image A; (b) phase diagram of image A; (c) SLM modulated image collected by CCD
    Experimental optical path for wavefront simulation and wavefront correction by LC-SLM
    Phase screen and distortion waveform for wavefront simulation. (a) 15th order Zenick phase screen grayscale image; (b) three-dimensional wavefront map of distorted wavefront
    Spot pattern collected by CCD. (a) Initial spot; (b) distorted spot; (c) corrected spot
    • Table 1. Device parameters of spatial light modulator

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      Table 1. Device parameters of spatial light modulator

      ItemKey specificationsParameter
      RL-SLM-R2Array sizePixel pitch /μmResolution /(pixel×pixel)Fill factor /%Reflectivity /%Bit depth /bitFrame rate /HzOperating wavelength /nmTarget damage threshold /(W·cm-2)Phase / retardance range @532 nm0.7812.31280×102490>70860400-70020-2π
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    Xizheng Ke, Kena Han. Wavefront Simulation and Wavefront Correction of Liquid Crystal Spatial Light Modulator[J]. Laser & Optoelectronics Progress, 2019, 56(5): 051403

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Aug. 29, 2018

    Accepted: Sep. 21, 2018

    Published Online: Jul. 31, 2019

    The Author Email: Kena Han (437054926@qq.com)

    DOI:10.3788/LOP56.051403

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