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Proceedings Paper

Intensity dependence of two-color holography performance in Tb-doped near-stoichiometric LiNbO3
Author(s): Kenji Kitamura; Youwen Liu; Shunji Takekawa; Masaru Nakamura; Hideki Hatano; Takashi Yamaji
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Paper Abstract

Two-color recording is achieved in a Tb-doped near-stoichiometric LiNbO3 crystal of 3-mm thickness by use of extraordinary 778 nm information-carrying beams and ordinary 350 nm gating light. The dependences of key parameters, the two-color recording sensitivity and the dynamic range expressed by the saturated diffraction efficiency, on intensities of recording and gating beams are presented. The saturated diffraction efficiency increases with total writing intensity, and then reaches a saturated value of 56% at an intensity of 20W/cm2. The sensitivity increases linearly with gating intensity at low intensity, and then saturates with a value of 0.08 cm/J at a higher intensity than 1.6 W/cm2. The saturated sensitivity is much higher than the reported value in literature. This material shows very significant improvement on two-color holography performance. 50 plane-wave holograms are recorded by the angle-multiplexing method and an M/# of 1.13 is obtained.

Paper Details

Date Published: 17 September 2002
PDF: 5 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483361
Show Author Affiliations
Kenji Kitamura, National Institute for Materials Science (Japan)
Youwen Liu, National Institute for Materials Science (Japan)
Shunji Takekawa, National Institute for Materials Science (Japan)
Masaru Nakamura, National Institute for Materials Science (Japan)
Hideki Hatano, Pioneer Corp. (Japan)
Takashi Yamaji, Pioneer Corp. (Japan)

Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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