Apparatus and method for measuring polarization-dependent loss using repeated high speed polarization scrambling
文献类型：专利
| 作者 | KOH, YEON WAN; LEE, BONG WAN; KIM, JUNG WON |
| 发表日期 | 2003-06-19 |
| 专利号 | US20030111998A1 |
| 著作权人 | DONAM SYSTEMS INC. |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Apparatus and method for measuring polarization-dependent loss using repeated high speed polarization scrambling |
| 英文摘要 | Disclosed is an apparatus and method for measuring a changing amount of insertion loss of an optical device depending on a polarization state of an incident light, i.e., a polarization-dependent loss. An incident light that is periodically subject to all polarization states passes through a testing optical device by a polarization scrambler including a piezoelectric element type optical fiber birefringence modulator, and an optical detector measures intensity of the passing light, in which the measured intensity values are averaged for birefringence modulation having a constant period, and then the polarization-dependent loss is computed from a ratio of maximum power to minimum power for the period. Use of the birefringence modulator shortens measuring time, and decreases an affect of external disturbance to the incident light that is incident into the testing optical component or occurrence probability of the external disturbance, so that the polarization-dependent loss can be precisely measured. |
| 公开日期 | 2003-06-19 |
| 申请日期 | 2002-02-07 |
| 状态 | 授权 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62477]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | DONAM SYSTEMS INC. |
| 推荐引用方式 GB/T 7714 | KOH, YEON WAN,LEE, BONG WAN,KIM, JUNG WON. Apparatus and method for measuring polarization-dependent loss using repeated high speed polarization scrambling. US20030111998A1. 2003-06-19. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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