論文

査読有り
2009年3月

Direct Servo Error Signal Detection Method from Recorded Micro-Reflectors

JAPANESE JOURNAL OF APPLIED PHYSICS
  • Hirotaka Miyamoto
  • ,
  • Hisayuki Yamatsu
  • ,
  • Kimihiro Saito
  • ,
  • Norihiro Tanabe
  • ,
  • Toshihiro Horigome
  • ,
  • Goro Fujita
  • ,
  • Seiji Kobayashi
  • ,
  • Hiroshi Uchiyama

48
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

リンク情報
DOI
https://doi.org/10.1143/JJAP.48.03A054
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000266115700055&DestApp=WOS_CPL

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