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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 28, Iss. 11 — Nov. 1, 2011
  • pp: 2310–2321

Full-complex amplitude modulation with binary spatial light modulators

Erdem Ulusoy, Levent Onural, and Haldun M. Ozaktas  »View Author Affiliations

JOSA A, Vol. 28, Issue 11, pp. 2310-2321 (2011)

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Imperfections and nonrobust behavior of practical multilevel spatial light modulators (SLMs) degrade the performance of many proposed full-complex amplitude modulation schemes. We consider the use of more robust binary SLMs for this purpose. We propose a generic method, by which, out of K binary (or 1 bit ) SLMs of size M × N , we effectively create a new 2 K -level (or K bit) SLM of size M × N . The method is a generalization of the well-known concepts of bit plane representation and decomposition for ordinary gray scale digital images and relies on forming a properly weighted superposition of binary SLMs. When K is sufficiently large, the effective SLM can be regarded as a full-complex one. Our method is as efficient as possible from an information theoretical perspective. A 4 f system is discussed as a possible optical implementation. This 4 f system also provides a means for eliminating the undesirable higher diffraction orders. The components of the 4 f system can easily be customized for different production technologies.

© 2011 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(090.0090) Holography : Holography
(090.1760) Holography : Computer holography
(090.2870) Holography : Holographic display
(100.2810) Image processing : Halftone image reproduction
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Fourier Optics and Signal Processing

Original Manuscript: June 27, 2011
Revised Manuscript: September 23, 2011
Manuscript Accepted: September 23, 2011
Published: October 19, 2011

Erdem Ulusoy, Levent Onural, and Haldun M. Ozaktas, "Full-complex amplitude modulation with binary spatial light modulators," J. Opt. Soc. Am. A 28, 2310-2321 (2011)

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