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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 5 — May. 1, 2009
  • pp: 424–427

Analysis of differential phase detection signal of a novel multi-level read-only disc

Mingming Yan, Jing Pei, Longfa Pan, and Yi Tang  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 5, pp. 424-427 (2009)


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Abstract

To improve the tracking servo performance, a novel signal waveform multi-level (SWML) read-only disc realized on the digital versatile disc (DVD) platform is presented. The characteristic of the differential phase detection (DPD) signal of the SWML read-only disc is analyzed both in theory and experiment. The amplitude of the DPD signal of the SWML read-only disc in an open tracking servo loop is about 2/3 of that of the DVD read-only disc. The uniformity and symmetry of the DPD signal of the SWML read-only disc are similar to those of the DVD read-only disc and better than the former multi-level run-length limited (ML-RLL) read-only disc.

© 2009 Chinese Optics Letters

OCIS Codes
(210.0210) Optical data storage : Optical data storage
(210.4590) Optical data storage : Optical disks
(210.4680) Optical data storage : Optical memories

Citation
Mingming Yan, Jing Pei, Longfa Pan, and Yi Tang, "Analysis of differential phase detection signal of a novel multi-level read-only disc," Chin. Opt. Lett. 7, 424-427 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-5-424

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