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Proceedings Paper

Multilevel optical recording using a blue laser
Author(s): Yuichi Kadokawa; Akihiko Shimizu; Kohbun Sakagami; Koji Takeuchi; Hiroshi Maekawa; Kazunori Takatsu
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Paper Abstract

Combining Data Detection using Pattern Recognition (DDPR) with LSB (Least Significant Bit) Limited Modulation (LLM) effectively reduces data errors in a blue laser optical disc system. We confirmed that a recording capacity of 25 GB is feasible for a system by using a laser diode of 405-nm wavelength and a 0.65 numerical aperture objective lens was effective to reduce data errors in a blue laser optical disc system.

Paper Details

Date Published: 16 September 2003
PDF: 6 pages
Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); doi: 10.1117/12.533053
Show Author Affiliations
Yuichi Kadokawa, Ricoh Co., Ltd. (Japan)
Akihiko Shimizu, Ricoh Co., Ltd. (Japan)
Kohbun Sakagami, Ricoh Co., Ltd. (Japan)
Koji Takeuchi, Ricoh Co., Ltd. (Japan)
Hiroshi Maekawa, Ricoh Co., Ltd. (Japan)
Kazunori Takatsu, Ricoh Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 5069:
Optical Data Storage 2003
Michael O'Neill; Naoyasu Miyagawa, Editor(s)

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