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Applied Optics

Applied Optics


  • Vol. 37, Iss. 35 — Dec. 10, 1998
  • pp: 8167–8172

Semiconfocal optical disk readout with one linear-spread beam

Takanori Maeda and Hajime Koyanagi  »View Author Affiliations

Applied Optics, Vol. 37, Issue 35, pp. 8167-8172 (1998)

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A novel, to our knowledge, optics pickup for semiconfocal optical disk is proposed. Five tracks are imaged simultaneously by use of one linear-shaped beam that extends over the tracks in the radial direction with the focusing and the tracking position controlled. We also show how the cross talk between tracks is eliminated automatically. The approximately diffraction-limited width of the beam and the small-signal detector elements make semiconfocal detection possible in the tangential direction.

© 1998 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(180.1790) Microscopy : Confocal microscopy
(210.4590) Optical data storage : Optical disks
(220.4830) Optical design and fabrication : Systems design

Original Manuscript: January 22, 1998
Revised Manuscript: August 11, 1998
Published: December 10, 1998

Takanori Maeda and Hajime Koyanagi, "Semiconfocal optical disk readout with one linear-spread beam," Appl. Opt. 37, 8167-8172 (1998)

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  1. C. W. Reno, “Optical disk recording techniques for data rates beyond 100 Mbps,” in Optical Disk Systems and Applications, E. V. LaBudde, ed., Proc. SPIE421, 156–157 (1983). [CrossRef]
  2. D. B. Carlin, J. P. Bednarz, C. J. Kaiser, J. C. Connolly, M. G. Harvey, “Multichannel optical recording using monolithic arrays of diode lasers: errata,” Appl. Opt. 23, 4613–4619 (1984). [CrossRef] [PubMed]
  3. R. Arai, M. Mizukami, T. Tanabe, K. Katoh, T. Yoshizawa, H. Yamazaki, S. Murata, Y. Tanaka, I. Sato, “Feasibility study on high data transfer rate of 300 Mbits/s with eight-beam laser diode array,” Jpn. J. Appl. Phys. 32, 5411–5416 (1994). [CrossRef]
  4. H. Kuribayashi, S. Miyanabe, Y. Tomita, M. Ogasawara, K. Yamamoto, “High density reproduction system using a cross-talk canceler,” in Technical Digest of the Magneto-Optical Recording International Symposium/International Symposium on Optical Memory (Business Center for Academic Societies of Japan, Tokyo, 1997), pp. 286–287.
  5. H. Dobashi, T. Tanabe, M. Yamamoto, “Three-track readout method using two offset beams,” Jpn. J. Appl. Phys. 35, 454–458 (1996). [CrossRef]
  6. P. J. Marchand, A. V. Krishnamoorthy, K. S. Urquhart, P. Ambs, S. C. Esener, S. H. Lee, “Motionless-head parallel readout optical-disk system,” Appl. Opt. 32, 190–203 (1993). [CrossRef] [PubMed]
  7. M. A. Neifeld, M. McDonald, “Lens-design issues affecting parallel readout of optical disks,” Appl. Opt. 34, 5167–5174 (1995). [CrossRef] [PubMed]
  8. C. J. R. Sheppard, A. Choudhury, “Image formation in the scanning microscope,” Opt. Acta 24, 1051–1073 (1977). [CrossRef]
  9. Y. Yamanaka, Y. Hirose, H. Fujii, K. Kubota, “High-density recording by superresolution in a optical disk memory system,” Appl. Opt. 29, 3046–3051 (1990). [CrossRef] [PubMed]
  10. “120 mm DVD-read-only disk,” in ECMA Standardizing Information and Communication Systems (European Computer Manufacturers Association, Geneva, Switzerland, 1997), p. 267.

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