Cross talk cancellation with a quadrant cell detector

Robert S. Upton, Farhad Akhavan, Tom D. Milster, Warren L. Bletscher, J. Kevin Erwin, Anson M. Nicol, Steban Flores

Research output: Contribution to journalConference articlepeer-review

Abstract

Cross talk levels of -20.8 dB for double-density tracks on compact disk-RW (CD-RW) media are demonstrated by using quadrant pupil detection (QPD) signal cancellation with a single focused spot. Cross talk cancellation in a single optical beam systems by means of a quadrant cell detector is analyzed. Results indicate that cross talk arising from single-tone frequency patterns can be corrected by simple amplitude and phase scaling, while dual-tone cross talk cancellation may require the use of shading bands.

Original languageEnglish (US)
Pages (from-to)26-28
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3864
StatePublished - Dec 1 1999
EventProceedings of the 1999 Joint International Symposium on Optical Memory and Optical Optical Data Storage (ISOM/ODS'99) - Koloa, HI, USA
Duration: Jul 12 1999Jul 15 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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