Xi'an Institute of Optics and Precision Mechanics,CAS
Semiconductor laser driving device | |
其他题名 | Semiconductor laser driving device |
SHINODA MASAHISA; FUJITA TERUO; KARAKI MASUHIRO; SATO YASUYUKI | |
1990-03-20 | |
专利权人 | MITSUBISHI ELECTRIC CORP |
公开日期 | 1990-03-20 |
授权国家 | 日本 |
专利类型 | 发明申请 |
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. |
其他摘要 | 目的:通过狭窄的封装保存聚光透镜的定位过程,并通过提供一个光传感器来获得具有优良批量生产能力的半导体激光驱动装置,光传感器一次接收来自多个光源的发射光束,安装激光器驱动装置一个接一个地点亮一个光源并推掉其他光源,并允许光传感器逐个感测光源的输出功率。组成:连接线18a,18b提供电流,以一个接一个地操作半导体激光器阵列6的多个光源。光传感器19布置在加热器5上,以便接收背光13a,13b,并且感测阵列6的光功率信号。 No.2杆20感测来自该光传感器19的电流信号。由光传感器19感测的光功率监视器信号是背光13a,13b的总和,并且不能感测到单独的光功率。当不同点处的光功率一个接一个地被推迟时,对其他光强度进行采样,并且感测每个激光器的输出功率。不需要感测分离的多个光通量,这省略了聚光透镜的定位过程,并且将获得廉价且具有充足的大规模生产能力的半导体激光器驱动装置。 |
申请日期 | 1988-09-14 |
专利号 | JP1990079483A |
专利状态 | 失效 |
申请号 | JP1988230947 |
公开(公告)号 | JP1990079483A |
IPC 分类号 | G11B7/125 | H01S5/042 | H01S5/0683 | H01S5/40 | H01S3/096 |
专利代理人 | - |
代理机构 | - |
文献类型 | 专利 |
条目标识符 | 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[P]. 1990-03-20. |
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JP1990079483A.PDF(270KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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