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Optics Letters

Optics Letters


  • Vol. 29, Iss. 1 — Jan. 1, 2004
  • pp: 113–115

Cross talk between holograms of finite contrast in a phase-code multiplexing system

Hyun Kim and Yeon H. Lee  »View Author Affiliations

Optics Letters, Vol. 29, Issue 1, pp. 113-115 (2004)

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The cross talk between holograms recorded in a phase-code multiplexing system is analyzed. The signal-to-noise ratio (SNR) is derived for the original image of a finite contrast ratio in the presence of a phase-shift error of the reference beam. It is shown that one particular code in the Walsh—Hadamard code set can be the dominant cross-talk noise source. We experimentally measured the SNR of the holograms recorded in an 8-bit phase-code multiplexing system by varying the contrast ratio of the original image. We show good agreement between experiment and theory. The existence of one bad code is also shown experimentally.

© 2004 Optical Society of America

OCIS Codes
(090.4220) Holography : Multiplex holography
(090.7330) Holography : Volume gratings
(210.2860) Optical data storage : Holographic and volume memories

Hyun Kim and Yeon H. Lee, "Cross talk between holograms of finite contrast in a phase-code multiplexing system," Opt. Lett. 29, 113-115 (2004)

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