Analytical solution to compensate for thermal expansion change in photopolymer volume holograms using a tunable laser
Applied Optics, Vol. 47, Issue 6, pp. 776-783 (2008)
http://dx.doi.org/10.1364/AO.47.000776
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Abstract
For holographic data storage, it is necessary to adjust the wavelength and direction of the reading beam if the reading and recording temperature do not match. An analytical solution for this adjustment is derived using first-order approximations in a two-dimensional model. The optimum wavelength is a linear function of the temperature difference between recording and reading, and is independent of the direction of the reference beam. However, the optimum direction of incidence is not only a linear function of the temperature difference, but also depends on the direction of the reference beam. The retrieved image, which is produced by a diffracted beam, shrinks or expands slightly according to the temperature difference.
© 2008 Optical Society of America
OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(090.7330) Holography : Volume gratings
(210.2860) Optical data storage : Holographic and volume memories
(210.4590) Optical data storage : Optical disks
ToC Category:
Optical Data Storage
History
Original Manuscript: September 27, 2007
Manuscript Accepted: December 7, 2007
Published: February 20, 2008
Citation
Tomiji Tanaka and Kenjiro Watanabe, "Analytical solution to compensate for thermal expansion change in photopolymer volume holograms using a tunable laser," Appl. Opt. 47, 776-783 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-6-776
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