Lens-design issues affecting parallel readout of optical disks

Mark A. Neifeld, Mark McDonald

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Lens designs are developed for parallel readout of data stored on optical disks. Optimizations of a single aspheric objective with standard wavelengths and numerical apertures are performed. These designs are evaluated for degree of parallelism achieved, improvement in aggregate data rate, source power requirements, and effect on head mass. We find that more than 225 channels and data rates of 4 Gbits/s can be supported with low-cost readout optics.

Original languageEnglish (US)
Pages (from-to)5167-5174
Number of pages8
JournalApplied optics
Issue number23
StatePublished - Aug 1995


  • Lens design
  • Optical data storage
  • Optical heads
  • Parallel readout

ASJC Scopus subject areas

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


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