High-density recording systems using partial response maximum likelihood (PRML) with blue laser diode (LD)

被引：9

作者：

Iwanaga, T ^{[1
]}

Ohkubo, S ^{[1
]}

Nakano, M ^{[1
]}

Kubota, M ^{[1
]}

Honma, H ^{[1
]}

Ide, T ^{[1
]}

Katayama, R ^{[1
]}

机构：

[1] NEC Corp Ltd, Multimedia Res Labs, Miyamae Ku, Kawasaki, Kanagawa 2168555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2003年 / 42卷 / 2B期

关键词：

high-density recording; PRML; blue LD; 0.6mm substrate; NA0.65; 20GB; 0.1 mm cover layer; NA0.85; 35GB; fingerprint influence;

D O I：

10.1143/JJAP.42.1042

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper describes our two newly developed high-density-recording systems, which consist of a 35 GB system and a 20 GB system using partial response maximum likelihood (PRML) with blue laser diode (LD), and their respective evaluation systems. The 20 GB system consists of a 0.6 mm substrate disk system (System #1) with a numerical aperture (NA) 0.65 objective lens. On the other hand, the 35 GB system consists of a 0.1 mm cover layer disk system (System #2) with a NA0.85 objective lens. Moreover, we considered the two advantages and disadvantages, and future technical progress. Consequently, we considered that System #1 is fit for personal computer (PC) applications, and System #2 is fit for video disk recorder applications, such as prolonged high definition (HD) video recording of broadcasting satellite (BS) digital broadcasting.

引用

页码：1042 / 1043

页数：2

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