High resolution optical multiplexing and demultiplexing device in optical communication system
文献类型：专利
| 作者 | OGUSU, MASAHIRO; OSHIMA, SHIGERU |
| 发表日期 | 1999-06-29 |
| 专利号 | US5917625 |
| 著作权人 | KABUSHIKI KAISHA TOSHIBA |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | High resolution optical multiplexing and demultiplexing device in optical communication system |
| 英文摘要 | An optical multiplexing and demultiplexing device of a type using a lens and a diffraction grating, which incorporates a waveguide array having waveguide channels with narrow spacings for facilitating high resolution, where the narrow spacings are realized by forming an etching groove between each adjacent waveguide channels and providing a measure for preventing optical coupling among the waveguide channels in the form of an air gap, or a layer having a refractive index lower than a cladding layer, or a layer for absorbing/reflecting light, which is provided in the etching groove. The device also incorporates a reflection mirror for reflecting the initially diffracted lights from the diffraction grating back to the diffraction grating, such that the diffracting grating diffracts the diffracted lights reflected back from the reflection mirror again to produce wavelength division multiplexed/demultiplexed optical signals in high resolution. |
| 公开日期 | 1999-06-29 |
| 申请日期 | 1997-02-21 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36383]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | KABUSHIKI KAISHA TOSHIBA |
| 推荐引用方式 GB/T 7714 | OGUSU, MASAHIRO,OSHIMA, SHIGERU. High resolution optical multiplexing and demultiplexing device in optical communication system. US5917625. 1999-06-29. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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