Optical Review

, Volume 8, Issue 4, pp 211–213

Optical Pick-up for Blue Optical Recording at NA = 0.85

  • Benno H. W. Hendriks
  • Jean Schleipen
  • Sjoerd Stallinga
  • Henk van Houten
INFORMATION OPTICS

DOI: 10.1007/s10043-001-0211-5

Cite this article as:
Hendriks, B.H.W., Schleipen, J., Stallinga, S. et al. OPT REV (2001) 8: 211. doi:10.1007/s10043-001-0211-5

Abstract

Sony and Philips have recently developed the basic technology for a 22.5 GB optical recording system, based on a blue laser (#x03BB; = 405 nm) and high numerical aperture (NA = 0.85) objective lens. This system is referred to by the acronym DVR (for Digital Video Recording). In this paper we describe the relization of a compact optical pickup unit capable of writing and reading data on disc according to the DVR format.

Key words

optical recordingblue laser diodehigh numerical apertureNA = 0.85optical pickup unitbeam shaperlaser driver 1C

Copyright information

© The Optical Society of Japan 2001

Authors and Affiliations

  • Benno H. W. Hendriks
    • 1
  • Jean Schleipen
    • 1
  • Sjoerd Stallinga
    • 1
  • Henk van Houten
    • 1
  1. 1.Philips Research LaboratoriesThe Netherlands