Folded liquid-crystal variable optical attenuator
文献类型：专利
| 作者 | HOYT, CLIFFORD C.; MILLER, PETER J. |
| 发表日期 | 2003-02-06 |
| 专利号 | US20030026583A1 |
| 著作权人 | CAMBRIDGE RESEARCH & INSTRUMENTATION, INC. |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Folded liquid-crystal variable optical attenuator |
| 英文摘要 | A variable optical attenuator including: a birefringent element positioned to separate an input optical signal into two spatially separated, orthogonally polarized beams; a LC modulator positioned to receive the orthogonally polarized beams and selectively alter their polarizations; a reflective element positioned to reflect the beams back through the LC modulator and the birefringent element, wherein the birefringent element recombines orthogonally polarized components of the reflected beams to produce an output optical signal; and a controller coupled to the LC modulator to selectively cause the LC modulator to alter the polarizations of the orthogonally polarized beams, wherein during operation the controller is responsive to a request to variably attenuate the intensity of the output optical signal relative to the intensity of the input optical signal to one of multiple non-zero attenuation settings. |
| 公开日期 | 2003-02-06 |
| 申请日期 | 2001-11-02 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/52575]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | CAMBRIDGE RESEARCH & INSTRUMENTATION, INC. |
| 推荐引用方式 GB/T 7714 | HOYT, CLIFFORD C.,MILLER, PETER J.. Folded liquid-crystal variable optical attenuator. US20030026583A1. 2003-02-06. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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