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Proceedings Paper

Dual-layer DVR with two lasers and a nonachromatic objective lens
Author(s): Peijun Jiang; Duanyi Xu; Guosheng Qi; Xuesong Mai; Hui Zhao
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Paper Abstract

A dual-laser DVR system, which utilizes chromatic aberration to obtain dual-layer storage, is reported in this paper. A non-achromatic objective lens is used, which is especially designed. It focuses 405 nm laser and 440 nm laser on two recording layers of the disc. Parallel accessing is avaialble to incrase data rate. Another key problem of the system is how to achieve space layer with high thickness stability. Some key problems of this system are discussed, such as: disc structure, writing and reading strategy, etc.

Paper Details

Date Published: 17 September 2002
PDF: 4 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483326
Show Author Affiliations
Peijun Jiang, Tsinghua Univ. (China)
Duanyi Xu, Tsinghua Univ. (China)
Guosheng Qi, Tsinghua Univ. (China)
Xuesong Mai, Tsinghua Univ. (China)
Hui Zhao, Tsinghua Univ. (China)

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

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