Digital versatile disc read-only disc, rewritable disc and compact disc compatible optical pickup with a two-wavelength laser diode unit

被引：5
|
作者：
Mori, E
Komma, Y
Yasuda, K
Hotta, N
Imafuji, O
Kikuchi, A
Itoh, T
机构：
[1] Matsushita Elect Ind Co Ltd, Opt Disk Syst Dev Ctr, Kadoma, Osaka 5718501, Japan
[2] Matsushita Commun Ind Co Ltd, Automot Elect Div, Dept Engn 2, Tsuzuki Ku, Kanagawa 2248539, Japan
[3] Semicond Co, Corp Mfg & Dev Div, Discrete Div, Kyoto 6178520, Japan
[4] AVC Co, AVC Network Business Grp, Opt Devices Dev Sect, Kadoma, Osaka 5718505, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2002年 / 41卷 / 7B期
关键词：
digital versatile disc; digital versatile disc rewritable disc; compact disc; optical pickup; two-wavelength laser diode unit; monolithic two-wavelength laser diode;
D O I：
10.1143/JJAP.41.4845
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have developed an optical pickup with a two-wavelength laser diode unit which can read all the compact disc (CD) and digital versatile disc (DVD) family, including DVD rewritable discs (DVD-RAMs). To enable DVD-RAMs to be read, it is necessary to increase the light power efficiency of the optical system and to reduce the so-called track-crossing noise. This paper discusses several approaches to designing an optical system using a monolithic two-wavelength laser diode, and describes our experimental results and compatible reading of DVD read-only discs (DVD-ROMs), DVD-RAMs, and CDs using an optical pickup with a two-wavelength laser diode unit.
引用
收藏
页码：4845 / 4849
页数：5
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