Apparatus and methods for reading multilayer storage media using short coherence length sources
文献类型：专利
| 作者 | SWANSON, ERIC A.; CHINN, STEPHEN R. |
| 发表日期 | 1998-05-05 |
| 专利号 | US5748598 |
| 著作权人 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Apparatus and methods for reading multilayer storage media using short coherence length sources |
| 英文摘要 | Apparatus and methods for reading multilayer optical data storage media are described. The apparatus includes a short coherence length light source and an optical system. The optical system focuses the light from the source onto the layers of the storage media. The coherence length of the source is less than 100 microns or less than the spacing between the layers. The Rayleigh range within the storage media may also be less than the spacing between the layers. The apparatus may include a detector for measuring alterations in light reflected from each layer of the storage media caused by data. The source may be any short coherence length source including superluminescent diodes, mode locked lasers, multi-longitudinal mode laser diode, or rare earth doped amplified spontaneous emission sources. |
| 公开日期 | 1998-05-05 |
| 申请日期 | 1995-12-22 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33516]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| 推荐引用方式 GB/T 7714 | SWANSON, ERIC A.,CHINN, STEPHEN R.. Apparatus and methods for reading multilayer storage media using short coherence length sources. US5748598. 1998-05-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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