Optical filter device | |
NUMAI, TAKAHIRO | |
1992-01-28 | |
著作权人 | NEC CORPORATION |
专利号 | US5084897 |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Optical filter device |
英文摘要 | An optical filter device comprises a distributed feedback region and an active region which are arranged in series and coupled optically, and anti-reflection structures which are positioned at both ends of the distributed feedback region and active region thus coupled to be in contact therewith so that a predetermined wavelength of an optical signal is selected from optical signals of, for instance, as much as 60 channels so that a wavelength selection can be performed in a narrow bandwidth of less than approximately 1 to 2 ANGSTROM and in a wide tuning range of an optical signal wavelength in accordance with a carrier injection thereinto. |
公开日期 | 1992-01-28 |
申请日期 | 1989-04-27 |
状态 | 失效 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/82015] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | NEC CORPORATION |
推荐引用方式 GB/T 7714 | NUMAI, TAKAHIRO. Optical filter device. US5084897. 1992-01-28. |
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