Semiconductor laser driving device

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	Semiconductor laser driving device
其他题名	Semiconductor laser driving device
	SATO YASUYUKI; KARAKI MORIHIRO; SHINODA MASAHISA
	1990-02-13
专利权人	MITSUBISHI ELECTRIC CORP
公开日期	1990-02-13
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To eliminate the need for the position adjustment of an optical system separating plural light beams, etc., and to improve mass producibility by providing a bisected photodetector to receive plural rear side rays of light from plural semiconductor laser light sources integrally. CONSTITUTION:A bisected photodetector 19 receiving plural rear side rays of light 13a and 13b from plural light sources of plural semiconductor laser arrays 6 integrally is provided. The title device is provided with amplifying circuit means 23, 26, 28 and 29 to obtain outputs made coincident with the output of a front side light 12a of one side by two output signals detected with the bisected photodetector 19 and arithmetic circuit means 24 and 27 to detect the outputs of individual front side lights 12a and 12b based on two output signals detected by the bisected photodetector 19. By operating the light output signals, the outputs of the front side rays of light 12a and 12b of plural semiconductor laser light sources are individually detected. Thus, the positioning stage of a converging lens inside a narrow package can be avoided, and the mass producibility can be improved.
其他摘要	用途：为了消除分离多个光束等的光学系统的位置调整的需要，并通过提供一个二等分光电探测器以一体地接收来自多个半导体激光光源的多个后侧光线来提高批量生产性。组成：一个二等分光电探测器19从多个半导体激光器阵列6的多个光源整体接收多个后侧光线13a和13b。标题装置具有放大电路装置23,26,28和29，以通过由二等分光电探测器19和运算电路装置24和27检测到的两个输出信号获得与一侧前侧光12a的输出一致的输出。基于由二等分光电探测器19检测的两个输出信号检测各个前侧灯12a和12b的输出。通过操作光输出信号，多个半导体激光光源的前侧光线12a和12b的输出是单独检测。因此，可以避免会聚透镜在窄封装内的定位阶段，并且可以提高批量生产性。
申请日期	1988-08-03
专利号	JP1990042639A
专利状态	失效
申请号	JP1988192669
公开（公告）号	JP1990042639A
IPC 分类号	G11B7/125 \| H01S5/00 \| H01S3/18
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/181661/69007
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	SATO YASUYUKI,KARAKI MORIHIRO,SHINODA MASAHISA. Semiconductor laser driving device. JP1990042639A[P]. 1990-02-13.

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