QQ客服 官方微博 反馈留言

	Semiconductor light-receiving device
	KAGAWA HITOSHI; YAGI TETSUYA
	1987-08-27
著作权人	MITSUBISHI ELECTRIC CORP
专利号	JP1987194685A
国家	日本
文献子类	发明申请
其他题名	Semiconductor light-receiving device
英文摘要	PURPOSE:To prevent the interference of light and to enable the simultaneous reception of two lights as well as the substantial adjustment of sensitivity of reception of light without depending on an external circuit, by providing two light-receiving surfaces isolated electrically from each other, and by providing films different in reflectivity on these light-receiving surfaces as well as an interference preventing region between the two light-receiving surfaces. CONSTITUTION:The device has two light-receiving surfaces isolated electrically from each other, films 7 and 8 formed on these two light-receiving surfaces respectively and being different in reflectivity from each other, and an interference preventing region 9 formed between the two light-receiving surfaces. The main body of the light-receiving device is so fitted that the isolating groove 9 thereof is aligned with a separating groove 1D of a laser apparatus Therefore, lights emitted from light-emitting elements 4 and 5 of rear end faces enter the light-receiving surfaces without interfering with each other. When a coating film 1A on the front end face of the semiconductor laser apparatus 1 has a high reflectivity and 1B a low reflectivity and further when the reflectivity of the rear end face thereof is uniform, light outputs from the rear end face are in the relationship of an output from the light-emitting element 4 > an output from the light-emitting element 5. The sensitivity of the light-receiving surfaces is adjusted by coating the light-receiving surface 8 with a film of lower reflectivity than that of the light-receiving surface 7.
公开日期	1987-08-27
申请日期	1986-02-20
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/89423]
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	KAGAWA HITOSHI,YAGI TETSUYA. Semiconductor light-receiving device. JP1987194685A. 1987-08-27.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

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。