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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 25 — Sep. 1, 2007
  • pp: 6263–6272

Tunable blue laser compensates for thermal expansion of the medium in holographic data storage

Tomiji Tanaka, Kageyasu Sako, Ryo Kasegawa, Mitsuru Toishi, and Kenjiro Watanabe  »View Author Affiliations


Applied Optics, Vol. 46, Issue 25, pp. 6263-6272 (2007)
http://dx.doi.org/10.1364/AO.46.006263


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Abstract

A tunable laser optical source equipped with wavelength and mode-hop monitors was developed to compensate for thermal expansion of the medium in holographic data storage. The laser's tunable range is 402 409   nm , and supplying 90   mA of laser diode current provides an output power greater than 40   mW . The aberration of output light is less than 0.05   λ rms . The temperature range within which the laser can compensate for thermal expansion of the medium is estimated based on the tunable range, which is ± 13.5   ° C for glass substrates and ± 17.5   ° C for amorphous polyolefin substrates.

© 2007 Optical Society of America

OCIS Codes
(090.7330) Holography : Volume gratings
(140.3600) Lasers and laser optics : Lasers, tunable
(210.2860) Optical data storage : Holographic and volume memories

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 16, 2007
Manuscript Accepted: June 1, 2007
Published: August 22, 2007

Citation
Tomiji Tanaka, Kageyasu Sako, Ryo Kasegawa, Mitsuru Toishi, and Kenjiro Watanabe, "Tunable blue laser compensates for thermal expansion of the medium in holographic data storage," Appl. Opt. 46, 6263-6272 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-25-6263

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