Improvement of dynamic characteristics for symmetric-type slim optical pickup actuator by changing coil shape

Dong Ju Lee, Myeong Gyu Song, Choong Kim, No Cheol Park, Young Pil Park, Nobuaki Onagi, Goichi Akanuma

Research output: Contribution to journalArticle

8 Citations (Scopus)


As rotational speed and track density of disk media in optical disk drives increases, an optical pickup actuator must have a high servo bandwidth for its focusing and tracking control to follow disk fluctuations. In this paper, we propose an efficient method to improve control bandwidth of actuators through changing the shape of cross section of coils without redesigning structural parts.

Original languageEnglish
Pages (from-to)808-810
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2007 Feb 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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