QQ客服 官方微博 反馈留言

	Low loss semiconductor directional coupler switches including gain method of switching light using same
	SOREF, RICHARD A.
	1991-04-02
著作权人	UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
专利号	US5004447
国家	美国
文献子类	授权发明
其他题名	Low loss semiconductor directional coupler switches including gain method of switching light using same
英文摘要	In multiple quantum well directional couplers, non-centralized input and output legs, occupying major portions of the switches, are continuously forward biased, to produce sufficient gain in light intensity therein to overcome losses in the centralized portions, to in turn provide a transparent (ODB loss) two-by-two coupler switch. Short segments of the centralized coupling portion occupying minor portions of the switches, are switched between forward bias states and zero bias states to provide light beam switching. Thus these switches employ both carrier gain and carrier refraction. The large changes in the index of refraction enable extremely short, low loss, switches to be fabricated and cascaded if desired. A second group of less preferred switches employ solely the carrier refraction effect, by injecting carriers into the waveguides at high levels, preferably equal to or greater than 1x1018/cm3.
公开日期	1991-04-02
申请日期	1989-09-06
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/42123]
专题	半导体激光器专利数据库
作者单位	UNITED STATES OF AMERICA, THE, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
推荐引用方式 GB/T 7714	SOREF, RICHARD A.. Low loss semiconductor directional coupler switches including gain method of switching light using same. US5004447. 1991-04-02.

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。