2009年3月
Direct Servo Error Signal Detection Method from Recorded Micro-Reflectors
JAPANESE JOURNAL OF APPLIED PHYSICS
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- 巻
- 48
- 号
- 3
- 開始ページ
- 03A054-1
- 終了ページ
- 03A054-5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1143/JJAP.48.03A054
- 出版者・発行元
- JAPAN SOCIETY APPLIED PHYSICS
Micro-reflector data storage is a practical candidate for post Blu-ray optical memory. It is based on bit-wise recording in a monolithic recording medium with a reference layer. In our conventional drive system, the objective lens position is controlled by servo error signals obtained from the reference layer. However, this servo system is not sufficiently robust against recording medium tilt and decentering because the servo error signals are not directly obtained from recorded marks. Here, we present a novel direct three-dimensional servo method to resolve this problem. In this servo method, the objective lens position is controlled by servo error signals directly obtained from recorded marks, or micro-reflectors. We verified the validity of the novel servo method by simulations. Furthemore, we demonstrated the improvement of the envelope and the jitter of a RF signal by the novel servo method experimentally. (C) 2009 The Japan Society of Applied Physics
Web of Science ® 被引用回数 : 11
Web of Science ® の 関連論文(Related Records®)ビュー
- リンク情報
- ID情報
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- DOI : 10.1143/JJAP.48.03A054
- ISSN : 0021-4922
- Web of Science ID : WOS:000266115700055