Optical Real-Time Phase-Only Correlator Using Liquid Crystal Television

  • Yunlong Sheng
  • Gille Paul-Hus
  • Lixin Shen
  • Luiz Gonçalves
  • Danny Roberge

Abstract

The spatial light modulator (SLM) is a key element in an optical processor. The principle limitations of the currently available SLMs are the limited phase and amplitude modulation capacity, the limited space bandwidth product (SBWP) and the limited speed. We use the commercial liquid crystal television (LCTV) as the SLM and build a real-time on-axis phase-only optical correlator. This approach allows the efficient use of the SBWP of the LCTV (200 x 200 and 440 x 480 for new type of LCTV) and provides high light efficiency.

Keywords

Spatial Light Modulator Correlation Output Continuous Phase Modulation Input Scene Phase Hologram 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    L. Gonçalves Neto and Y. Sheng, “Optical real-time kinoform using the liquid crystal television and iterative design”, Proc. SPIE, vol. 2237, 190–195 (1994).CrossRefGoogle Scholar
  2. 2.
    R. Juday, “Correlation with a spatial light modulator having phase and amplitude cross coupling”, Appl. Opt. 28, 4865–4869 (1989).CrossRefGoogle Scholar
  3. 3.
    Y. Sheng and G. Paul-Hus, “Optical on-axis imperfect phase-only correlator using liquid-crystal television”, Appl. Opt. 32, 5782–5785 (1993).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Yunlong Sheng
    • 1
  • Gille Paul-Hus
    • 1
  • Lixin Shen
    • 1
  • Luiz Gonçalves
    • 1
  • Danny Roberge
    • 1
  1. 1.Centre d’Optique, Photonique et Laser, Département de PhysiqueUniversité LavalCanada

Personalised recommendations