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Optical Engineering

Holographic associative memory using a coherently induced double phase conjugate mirror
Author(s): Xiudong Sun; Zhongxiang Zhou; Yan Li; Yongyuan Jiang; Kebin Xu; Jingwen Zhang
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Paper Abstract

We demonstrate a new method to implement holographic associative memory based on a coherently induced double phase conjugate mirror that has phase-conjugate reflectivity larger than unity for weak reference signal over a large range of pumping-reference intensity ratio. The phase conjugator, operated with a copper-doped KNSBN crystal, serves as a novel nonlinear feedback and gain element for the associative memory system. A vanadium-doped KNSBN crystal as storage medium improves the response speed of the holographic recording process. A stored image has been completely retrieved when a partial input addresses the associative memory system.

Paper Details

Date Published: 1 August 1996
PDF: 5 pages
Opt. Eng. 35(8) doi: 10.1117/1.600796
Published in: Optical Engineering Volume 35, Issue 8
Show Author Affiliations
Xiudong Sun, Harbin Institute of Technology (China)
Zhongxiang Zhou, Harbin Institute of Technology (China)
Yan Li, Harbin Institute of Technology (China)
Yongyuan Jiang, Harbin Institute of Technology (China)
Kebin Xu, Harbin Institute of Technology (China)
Jingwen Zhang, Shandong Univ. (China)


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