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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 14 — May. 10, 2006
  • pp: 3270–3274

Reflection-type holographic disk memory with random phase shift multiplexing

Osamu Matoba, Yuji Yokohama, Masato Miura, Kouichi Nitta, and Takeaki Yoshimura  »View Author Affiliations

Applied Optics, Vol. 45, Issue 14, pp. 3270-3274 (2006)

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A reflection-type holographic disk memory system with random phase shift multiplexing is proposed. The experimental results show that a binary data page of 18 × 17   bits is recorded successfully at intervals of 4   μm in a Fe:LiNbO 3 crystal with a thickness of 0.5   mm when six data pages are superimposed. Numerical results show that random phase modulation can improve the shift selectivity in shift multiplexing recording as well as in data security. Experimental and numerical results show that reflection-type holographic disk memory has a high potential for terabyte storage capacity as in transmission-type memory.

© 2006 Optical Society of America

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

Original Manuscript: October 3, 2005
Revised Manuscript: December 2, 2005
Manuscript Accepted: December 3, 2005

Osamu Matoba, Yuji Yokohama, Masato Miura, Kouichi Nitta, and Takeaki Yoshimura, "Reflection-type holographic disk memory with random phase shift multiplexing," Appl. Opt. 45, 3270-3274 (2006)

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