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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 12 — Apr. 20, 2010
  • pp: 2309–2315

Interlayer crosstalk reduction of a multilayer Blu-ray Disc using a grating in a three beam optical system

Tatsuro Ide, Shigeharu Kimura, Eriko Tatsu, Takahiro Kurokawa, Koichi Watanabe, Yumiko Anzai, and Toshimichi Shintani  »View Author Affiliations


Applied Optics, Vol. 49, Issue 12, pp. 2309-2315 (2010)
http://dx.doi.org/10.1364/AO.49.002309


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Abstract

In multilayer optical discs, light reflected by out-of-focus layers, which we call interlayer crosstalk, causes the tracking error signal to fluctuate, making the readout signal unstable. We previously proposed a novel method to use a grating along the optical axis in the return path of a pickup to suppress the fluctuation of a differential push-pull (DPP) signal. We develop a pickup and evaluate its performance to stabilize the DPP signal experimentally. DPP signal fluctuation is suppressed to one-third (6% to 2%), and also satisfactory readout jitters (about 8%) are obtained for a triple-layer Blu-ray Disc (BD), which demonstrate the validity of this method to reduce interlayer crosstalk of multilayer optical discs.

© 2010 Optical Society of America

OCIS Codes
(210.0210) Optical data storage : Optical data storage
(210.4590) Optical data storage : Optical disks
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Optical Data Storage

History
Original Manuscript: December 11, 2009
Revised Manuscript: March 3, 2010
Manuscript Accepted: March 22, 2010
Published: April 14, 2010

Citation
Tatsuro Ide, Shigeharu Kimura, Eriko Tatsu, Takahiro Kurokawa, Koichi Watanabe, Yumiko Anzai, and Toshimichi Shintani, "Interlayer crosstalk reduction of a multilayer Blu-ray Disc using a grating in a three beam optical system," Appl. Opt. 49, 2309-2315 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-12-2309


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References

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