Real time servo control of the holographic data storage system with an additional servo beam

Junho Yang, Sang Hoon Kim, Jang Hyun Kim, Hyunseok Yang, Joo Youn Park, No Cheol Park, Young Pil Park

Research output: Contribution to journalArticle

5 Citations (Scopus)


Holographic data storage is a next generation data storage device, which has high storage density, high data transfer rate and short access time. The device is very sensitive to disturbances due to its enormous storage density. In the disk type holographic data storage device deviation occurs successionally on the position of the data as the disk rotates. Therefore the spot where the probe beam is illuminated should directly be corrected in order to exactly retrieve the desired data. In this paper we suggest a method using an additional beam containing a servo pattern in order to detect the deviation of the media. We also propose a real time servo control method to compensate the affect of the unpredicted disturbance.

Original languageEnglish
Pages (from-to)1397-1402
Number of pages6
JournalMicrosystem Technologies
Issue number8-10
Publication statusPublished - 2007 May 1


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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