Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths
文献类型：专利
| 作者 | TACHIKAWA YOSHIAKI; KAWACHI MASAO; TAKAHASHI HIROSHI; INOUE KYO |
| 发表日期 | 1994-03-30 |
| 专利号 | CA2107181A1 |
| 著作权人 | NIPPON TELEGRAPH & TELEPHONE CORPORATION |
| 国家 | 加拿大 |
| 文献子类 | 发明申请 |
| 其他题名 | Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths |
| 英文摘要 | An optical device is presented which is useful for opticalsignal transmission and switching systems by multiplexing anddemultiplexing optical signals in looped optical paths,consisting of a plurality of individual loop-back optical paths.The device is essentially a multi/demultiplexer having anarrayed waveguide grating disposed between a plurality of inputsections and output sections which are joined by the pluralityof individual loop-back optical paths. Because the modulatedsignals are looped back into the same optical paths using thesame devices, problems of mismatching performance introduced byusing different optical devices are avoided. The deviceprocesses individual optical signals of different wavelengths,minimizes splitting losses, and reduces noise components byproducing narrow bandpass signals of high signal to noise ratio.Optical signal splitting and insertion, delay line memory anddelay equalization circuits can all be handled by the samecircuit configuration. The device is simple in construction,reliable in performance and economical in production. |
| 公开日期 | 1994-03-30 |
| 申请日期 | 1993-09-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/66150]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON TELEGRAPH & TELEPHONE CORPORATION |
| 推荐引用方式 GB/T 7714 | TACHIKAWA YOSHIAKI,KAWACHI MASAO,TAKAHASHI HIROSHI,et al. Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths. CA2107181A1. 1994-03-30. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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