Data storage system having an optical processing flying head
文献类型：专利
| 作者 | HEANUC, JOHN F; WILDE, JEFFREY P.; HURST, JR., JERRY E.; JERMAN, JOHN H. |
| 发表日期 | 2004-08-24 |
| 专利号 | US6781927 |
| 著作权人 | SEAGATE TECHNOLOGY LLC |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Data storage system having an optical processing flying head |
| 英文摘要 | An optical data storage and retrieval system uses a flying head. The flying head is supported on a moving media having information stored in a plurality of stored data locations thereon. Information is stored in each of the plurality of media locations as physical structures capable of modulating the polarization state of incident light into one of two output polarization states. The flying head includes an optical processing assembly which directs an incident light beam having a source polarization state onto the moving media, accessing successive data locations. A reflected light beam having the source polarization state of the incident light beam modulated by a respective polarization modifying data location into one of the output polarization states is received by the flying head. The optical processing assembly optically transforms the modulated output polarization state of the reflected light beam into two return light beams having differentially modulated intensity related to the output polarization state of the reflected light beam. The two intensity modulated return light beams are optically coupled to a distal differential detector which outputs digital data representing the stored data information for the subject data location. A preferred embodiment includes optical fibers for coupling the incident and return light beams between the detector and the flying head. The optical assembly of a preferred embodiment includes an optical plate having pre-shaped and dimensioned recesses for automatically locating and aligning multiple optical components comprising the assembly. The flying head may also include a servo-controlled micro machined mirror for directing the incident and reflected light beams to and from the media. |
| 公开日期 | 2004-08-24 |
| 申请日期 | 1999-11-09 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36608]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SEAGATE TECHNOLOGY LLC |
| 推荐引用方式 GB/T 7714 | HEANUC, JOHN F,WILDE, JEFFREY P.,HURST, JR., JERRY E.,et al. Data storage system having an optical processing flying head. US6781927. 2004-08-24. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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