A Multilayered Blu-Ray Disc readout technique with an optical longitudinal filter for reducing interlayer crosstalk in a three-beam optical system

Author

Ide, Tatsuro ; Kimura, Shigeharu ; Tatsu, Eriko ; Kurokawa, Takahiro ; Watanabe, Koichi ; Anzai, Yumiko ; Shintani, Toshimichi

Author_Institution

Central Res. Lab., Hitachi, Ltd., Kokubunji

fYear

2009

fDate

10-13 May 2009

Firstpage

49

Lastpage

51

Abstract

A Multilayered Blu-ray Disc (BD) readout technique-using an optical longitudinal filter (OLF) and differential push-pull (DPP)-to reduce interlayer crosstalk was demonstrated. DPP signal fluctuation was suppressed to one-third (6% to 2%), and satisfactory readout jitters (about 8%) were obtained for a triple-layered BD.

Keywords

jitter; optical crosstalk; optical disc storage; optical filters; optical multilayers; differential push-pull signal fluctuation; interlayer crosstalk; multilayered blu-ray disc readout technique; optical longitudinal filter; readout jitters; three-beam optical system; Fluctuations; Gratings; Laboratories; Lenses; Mirrors; Optical crosstalk; Optical diffraction; Optical filters; Optical recording; Stray light; DPP; fluctuation; interlayer crosstalk; multi-layer; optical disc; optical longitudinal filter (OLF);

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Data Storage Topical Meeting, 2009. ODS '09.

Conference_Location

Lake Buena Vista, FL

Print_ISBN

978-1-4244-3342-1

Electronic_ISBN

978-1-4244-3343-8

Type

conf

DOI

10.1109/ODS.2009.5031750

Filename

5031750