Laser diode module
文献类型:专利
作者 | NAKAGAWA EIICHI; YAMASHITA JUNICHIRO; KANEKO SHINICHI; HATTA TATSUO |
发表日期 | 1991-06-20 |
专利号 | JP1991145608A |
著作权人 | MITSUBISHI ELECTRIC CORP |
国家 | 日本 |
文献子类 | 发明申请 |
其他题名 | Laser diode module |
英文摘要 | PURPOSE:To maintain original 2nd higher harmonic distortion that an LD element generates even in an easy connection state using a connector by providing a coating layer of a material which has a larger refractive index than a clad layer and has absorption characteristics in the oscillation wavelength range of the LD element. CONSTITUTION:The optical fiber formed by coating the clad layer 7 with the material which has the larger refractive index than the clad layer 7 and has absorption characteristics in the oscillation wavelength range of the laser diode element (LD) 1 is used. In an LD module 24 like this, light which is emitted by the LD element 1, made incident on the clad layer 7 of an optical fiber, and further made incident on the coating layer 23 is absorbed in the clad layer 23 and never re-incident on the clad layer 7, so the propagation loss of light propagated in the clad layer 7 of the optical fiber increases and a connector connection reduces the quantity of light incident on the core layer 6 of the optical fiber of a photodiode module to an extent where the light can be ignored as compared with the level of the 2nd higher harmonic component of light propagated in an original path. Consequently, the 2nd higher harmonic distortion generated by the LD element 1 can be maintained. |
公开日期 | 1991-06-20 |
申请日期 | 1989-11-01 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/78894] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | MITSUBISHI ELECTRIC CORP |
推荐引用方式 GB/T 7714 | NAKAGAWA EIICHI,YAMASHITA JUNICHIRO,KANEKO SHINICHI,et al. Laser diode module. JP1991145608A. 1991-06-20. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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