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Proceedings Paper

Uniform illumination of SLM with a vibrating band-limited diffuser in a digital volume holographic storage system
Author(s): Liangcai Cao; Qingsheng He; Haoyun Wei; Minxian Wu; Guofan Jin
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Paper Abstract

A method of uniform illumination for digital volume holographic storage system is proposed based on the speckle modulation technique by using a band-limited diffuser. The special diffuser is placed at a distance before the object plane to make the illumination light uniform, with approximate 4% rms power variation. Furthermore, vibrating the diffuser can help to reduce the speckle noise that roots in the Fourier imaging and recording system. The experimental results are given and it is shown that this method can reach a low raw bit error rate for the stored binary pages.

Paper Details

Date Published: 16 September 2003
PDF: 7 pages
Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); doi: 10.1117/12.533077
Show Author Affiliations
Liangcai Cao, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)
Haoyun Wei, Tsinghua Univ. (China)
Minxian Wu, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5069:
Optical Data Storage 2003
Michael O'Neill; Naoyasu Miyagawa, Editor(s)

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