Semiconductor laser driving device
文献类型：专利
| 作者 | SHINODA MASAHISA; FUJITA TERUO; KARAKI MASUHIRO; SATO YASUYUKI |
| 发表日期 | 1990-03-20 |
| 专利号 | JP1990079483A |
| 著作权人 | MITSUBISHI ELECTRIC CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser driving device |
| 英文摘要 | PURPOSE:To save the locating process for a condenser lens in a narrow package and obtain a semiconductor laser drive device excellent in mass producibility by furnishing a light sensor which in lump receives the emitted beams of light from a plurality of light sources, installing a laser driving means to light up only one light source one by one and put off the others, and allowing the light sensor to sense the output power of light source one by one. CONSTITUTION:Connection wires 18a, 18b supply current to operate a plurality of light sources of a semiconductor laser array 6 one after another. A light sensor 19 is arranged on a heater 5 so a to receive back lights 13a, 13b, and a photo-power signal of the array 6 is sensed. No.2 stem 20 senses current signals from this light sensor 19. A photo-power monitor signal sensed by the light sensor 19 is the sum of back lights 13a, 13b, and individual photo-powers can not be sensed. While photo-power at different spots are put off one after another, other light-intensity are sampled, and the output power of each laser is sensed. There is no need to sense a plurality of optical fluxes separated, which omits the locating process for a condenser lens, and a semiconductor laser drive device cheap and with ample mass producibility will be obtained. |
| 公开日期 | 1990-03-20 |
| 申请日期 | 1988-09-14 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/69015]  |
| 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 | SHINODA MASAHISA,FUJITA TERUO,KARAKI MASUHIRO,et al. Semiconductor laser driving device. JP1990079483A. 1990-03-20. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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