QQ客服 官方微博 反馈留言

	Semiconductor laser device and method of driving same
	TANAKA KAZUHIRO
	1990-03-05
著作权人	FUJITSU LTD
专利号	JP1990065189A
国家	日本
文献子类	发明申请
其他题名	Semiconductor laser device and method of driving same
英文摘要	PURPOSE:To simplify an optical circuit by directly inputting an optical signal to an oscillation wavelength tunable semiconductor laser device to control an oscillation wavelength. CONSTITUTION:The wavelength of an input light 14 is shortened to be shorter than a band gap wavelength in a waveguide layer 2, and the light 14 is absorbed by the layer 2. An absorbed current flows to a DBR region 9 to which a reverse bias voltage is applied by this absorption, a voltage drop occurs at a load section 11, and an electric field to be applied to the layer 2 in the region 9 is varied. Its refractive index is varied by primary electrooptical effect and Franz-Keldysh effect in the layer 2 of the part. Thus, Bragg's wavelength in a diffraction grating 1A is varied, and an oscillation wavelength to be determined thereby is also altered. Accordingly, the oscillation wavelength is controlled in response to the intensity of the input light 14.
公开日期	1990-03-05
申请日期	1988-08-31
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/64523]
专题	半导体激光器专利数据库
作者单位	FUJITSU LTD
推荐引用方式 GB/T 7714	TANAKA KAZUHIRO. Semiconductor laser device and method of driving same. JP1990065189A. 1990-03-05.

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。