Coupling mechanism for semiconductor light-emitting device
文献类型：专利
| 作者 | HANAMITSU KIYOSHI |
| 发表日期 | 1987-09-17 |
| 专利号 | JP1987211979A |
| 著作权人 | FUJITSU LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Coupling mechanism for semiconductor light-emitting device |
| 英文摘要 | PURPOSE:To make smaller the fluctuation of the differential efficiency due to temperature by a method wherein, in case the outputted light from a laser diode and an optical fiber are coupled together, a mechanism having a coupling efficiency for compensating the temperature characteristic of differential effi ciency of the laser diode is provided. CONSTITUTION:An optical fiber 1 having a spherically worked point is held by a supporting bar 2 consisting of an invar and an LD (laser diode) 3 is fixed on a supporting base 4 consisting of a copper material. As the linear expansibility of invar is 0.1X2X10/deg and that of of copper is 16.8X10/deg, the height of the supporting bar 2 is given by a formula of 16.8X10XhX60=2X10 for giving a displacement of 2mum to the coupling mechanism of the emitted light from the LD and the optical fiber at a temperature change of 60 degrees. That is, when the optical fiber is fixed on the invar supporting bar of a height of 2mm and the optical system is adjusted in such a way that the maximum coupling can be attained at an ambient temperature of 60 degrees, a position deviation is generated in the case of a temperature of 60 deg.C or less, the coupling efficiency is lowered and the overall efficiency becomes nearly flat. |
| 公开日期 | 1987-09-17 |
| 申请日期 | 1986-03-12 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/63016]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU LTD |
| 推荐引用方式 GB/T 7714 | HANAMITSU KIYOSHI. Coupling mechanism for semiconductor light-emitting device. JP1987211979A. 1987-09-17. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。