Subtle effects of the substrate in optical disk data storage systems

Timothy D. Goodman, M. Mansuripur

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Much attention has been focused on the effects of the disk substrate in optical data storage. In particular, substrate birefringence has been studied extensively because it causes significant problems in magneto-optic systems. We investigate certain subtle effects of the substrate, such as feedback into the laser diode, in compact disk and phase-change systems. Our analysis of the compact disk system led us to discover a new technique for the rapid measurement of the substrate birefringence. We also address the question of how focusing the laser beam through the substrate will affect the depth of focus.

Original languageEnglish (US)
Pages (from-to)6747-6753
Number of pages7
JournalApplied optics
Issue number34
StatePublished - Dec 1 1996


  • Depth of focus
  • Laser feedback
  • Optical data storage
  • Substrate birefringence

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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