HIGH-DENSITY MAGNETOOPTICAL RECORDING WITH A 2ND-HARMONIC GENERATION GREEN LASER

被引：7

作者：

ICHIMURA, I

SABI, Y

TAKESHITA, Y

FUKUMOTO, A

KANEKO, M

OWA, H

机构：

[1] Corporate Research Laboratories, Sony Corporation, Shinagawa-ku, Tokyo, 141

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 11B期

关键词：

MAGNETOOPTICAL (MO) DISK; GDFECO/TBFECO DOUBLE-LAYERED MO DISK; 2ND-HARMONIC GENERATION (SHG); GREEN LASER; HIGH DENSITY RECORDING;

D O I：

10.1143/JJAP.32.5312

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tripled areal density optical recording was realized with the combination of a high power laser-diode pumped intracavity frequency-doubled Nd:YAG laser (SHG green laser), a low noise GdFeCo/TbFeCo double-layered magneto-optical (MO) disk, and high sensitivity photodetectors optimized for the wavelength of the light source. A high carrier-to-noise (C/N) ratio of more than 48 Db and a bit error rate of less than 3 X 10(-6) by (2, 7) run-length-limited (RLL) mark position recording was obtained at a mark length of 0.45 mum (0.6 mum/bit) for a disk with a 0.9 mum track pitch.

引用

页码：5312 / 5316

页数：5

共 12 条

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