Multi-beam optical system for optical tape recording

被引：7
|
作者：
Tokumaru, H [1 ]
Okumura, H [1 ]
Arai, K [1 ]
Kawamura, N [1 ]
Yoshimura, S [1 ]
机构：
[1] NHK Japan Broadcasting Corp, Sci & Tech Res Labs, Setagaya Ku, Tokyo 157, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 4B期
关键词：
optical tape; optical head; multi-beam; parallel recording; multi-beam laser diode array; focused spot; track pitch; lateral magnification;
D O I：
10.1143/JJAP.37.2241
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An optical tape recording system utilizing a rotating optical head is under development as a mass storage device suitable for recording television programs. High-quality moving pictures for broadcast require a correspondingly high bit rate of over 100 megabits per second (Mbps) for recording. Toward the realization of such a high bit rate, recording in parallel utilizing many laser beams is most effective. We propose on optical system integrating a head thai is suitable for parallel recording on an optical tape with numerous laser beams. The: optical system assumes the role of keeping the: lateral magnification constant during focusing. We studied the effectiveness of such an optical system by the experimental construction of a four-beam optical head.
引用
收藏
页码：2241 / 2244
页数：4
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