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Optics Letters

Optics Letters


  • Vol. 26, Iss. 24 — Dec. 15, 2001
  • pp: 1990–1992

Optical implementation of orthogonal phase-code multiplexing

Yeon H. Lee and Seung-Dae Sohn  »View Author Affiliations

Optics Letters, Vol. 26, Issue 24, pp. 1990-1992 (2001)

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We propose a new optical implementation of orthogonal phase-code multiplexing in which an arbitrary phase shift of θ or θ +π is used in the reference beam instead of 0 or π as in the conventional method. To compare the new and the conventional methods, we employ a 2-bit orthogonal phase code and store two binary-data images in a BaTiO3 crystal with each method. We also employ numerical methods to simulate the 2-bit phase-code multiplexing and show that the signal-to-noise ratio in the restored images is improved by more than one order of magnitude in the new method in our experimental conditions.

© 2001 Optical Society of America

OCIS Codes
(090.4220) Holography : Multiplex holography
(090.7330) Holography : Volume gratings
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(210.2860) Optical data storage : Holographic and volume memories

Yeon H. Lee and Seung-Dae Sohn, "Optical implementation of orthogonal phase-code multiplexing," Opt. Lett. 26, 1990-1992 (2001)

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  5. G. A. Rakuljic, V. Leyva, and A. Yariv, Opt. Lett. 17, 1471 (1992).
  6. N. V. Kukhtarev, V. B. Markov, S. G. Odulov, M. S. Soskin, and V. L. Vinetskii, Ferroelectrics 22, 949 (1979).

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