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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 17 — Jun. 10, 2012
  • pp: 3837–3846

Diffraction based phase compensation method for phase-only liquid crystal on silicon devices in operation

Zichen Zhang, Haining Yang, Brian Robertson, Maura Redmond, Mike Pivnenko, Neil Collings, William A. Crossland, and Daping Chu  »View Author Affiliations

Applied Optics, Vol. 51, Issue 17, pp. 3837-3846 (2012)

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A method to measure the optical response across the surface of a phase-only liquid crystal on silicon device using binary phase gratings is described together with a procedure to compensate its spatial optical phase variation. As a result, the residual power between zero and the minima of the first diffraction order for a binary grating can be reduced by more than 10 dB, from 15.98dB to 26.29dB. This phase compensation method is also shown to be useful in nonbinary cases. A reduction in the worst crosstalk by 5.32 dB can be achieved when quantized blazed gratings are used.

© 2012 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(090.0090) Holography : Holography
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 17, 2012
Manuscript Accepted: March 13, 2012
Published: June 7, 2012

Zichen Zhang, Haining Yang, Brian Robertson, Maura Redmond, Mike Pivnenko, Neil Collings, William A. Crossland, and Daping Chu, "Diffraction based phase compensation method for phase-only liquid crystal on silicon devices in operation," Appl. Opt. 51, 3837-3846 (2012)

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