QQ客服 官方微博 反馈留言

	Semiconductor laser device
	YAMANAKA KATSUHIKO; MIURA AKIRA; YAGIHARA TAKESHI
	1985-11-08
著作权人	YOKOKAWA HOKUSHIN DENKI KK
专利号	JP1985224134A
国家	日本
文献子类	发明申请
其他题名	Semiconductor laser device
英文摘要	PURPOSE:To improve an S/N ratio by driving a semiconductor laser by the signal on which high-frequency current is superposed and oscillating the laser with non-single mode. CONSTITUTION:The high-frequency current having the frequency, for example, 2.5-4GHz for returning the oscillation mode of the semiconductor laser LD to multimodes prior to lapse of the time when said mode changes to single mode is emitted from a high-frequency current source G and is superposed on the output current of a DC current source I via a capacitor C. The laser LD is thus driven by the signal on which the high frequency is superposed. The amplitude of the current source G is so set as to cut off thoroughly the threshold current of the laser LD. The characteristic having the stable S/N ratio is thus obtd. even if the optical length and the frequency of the high-frequency current vary to some extent.
公开日期	1985-11-08
申请日期	1984-04-20
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/68718]
专题	半导体激光器专利数据库
作者单位	YOKOKAWA HOKUSHIN DENKI KK
推荐引用方式 GB/T 7714	YAMANAKA KATSUHIKO,MIURA AKIRA,YAGIHARA TAKESHI. Semiconductor laser device. JP1985224134A. 1985-11-08.

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。