An advanced data detection method for 34.6-Gbit/in<sup>2</sup> multilevel recording using a blue laser and NA0.85 optics

Masakuni Yamamoto; Jun Sumioka; Kaoru Okamoto; Yasuyuki Miyaoka; Eiichi Fujii

doi:10.1117/12.692280

22 June 2006 An advanced data detection method for 34.6-Gbit/in² multilevel recording using a blue laser and NA0.85 optics

Masakuni Yamamoto, Jun Sumioka, Kaoru Okamoto, Yasuyuki Miyaoka, Eiichi Fujii

Author Affiliations +

Proceedings Volume 6282, Optical Data Storage 2006; 62822D (2006) https://doi.org/10.1117/12.692280
Event: Optical Data Storage 2006, 2006, Montréal, Canada

Abstract

In this study, a commercial BD (Blu-ray disc) and BD optics (blue laser and NA0.85) were used for multilevel recording. The goal is to double both the present capacity and data transfer rate. To achieve this, it is necessary to overcome severe inter-symbol interference (ISI) from outer cells at a small cell length. In order to suppress ISI, we have developed an advanced data detection method that uses CBDD (Cell Boundary Data Detection) and TCM (Trellis-Coded-Modulation), and have achieved an areal density of 34.6-Gbit/in² multilevel recording.

Citation Download Citation

Masakuni Yamamoto, Jun Sumioka, Kaoru Okamoto, Yasuyuki Miyaoka, and Eiichi Fujii "An advanced data detection method for 34.6-Gbit/in² multilevel recording using a blue laser and NA0.85 optics", Proc. SPIE 6282, Optical Data Storage 2006, 62822D (22 June 2006); https://doi.org/10.1117/12.692280

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