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Proceedings Paper

Compensation of laser wavelength drift in collinear holographic storage system
Author(s): Xiaotong Li; Yabin Cheng; Xiao Lin; Guoguo Kang; Xiaodi Tan
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Paper Abstract

Collinear holographic storage system is one of the advantages of the promising candidate as its unique system design. The wavelength margin is a very important characteristic which can make a laser diode to be used possible as a light source in a holographic storage system, because of the bit-error-rate (BER) of a reconstructed page data pattern will be so high that we cannot decode it correctively, even though the wavelength drift of the diode was small enough. To solve the problem, we studied a method of decreasing BER by adjusting the focal length of the lens to compensate the wavelength drift in the collinear holographic storage system. Once we changed the focal length of the lens, the angles can also be changed to satisfy the Bragg condition. So we find that decreasing the focal length of the lenses can compensate the wavelength drift up effectively and vice versa.

Paper Details

Date Published: 10 March 2015
PDF: 6 pages
Proc. SPIE 9386, Practical Holography XXIX: Materials and Applications, 93860H (10 March 2015); doi: 10.1117/12.2080421
Show Author Affiliations
Xiaotong Li, Beijing Institute of Technology (China)
Yabin Cheng, Beijing Institute of Technology (China)
Xiao Lin, Beijing Institute of Technology (China)
Guoguo Kang, Beijing Institute of Technology (China)
Xiaodi Tan, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 9386:
Practical Holography XXIX: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove Jr., Editor(s)

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