Optical logic integrated element

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	Optical logic integrated element
其他题名	Optical logic integrated element
	OKOCHI SHUNSUKE
	1989-04-25
专利权人	NEC CORP
公开日期	1989-04-25
授权国家	日本
专利类型	发明申请
摘要	PURPOSE:To obtain a NOR gate having a large extinction ratio by laminating a photodetector on the upper part of other part than the waveguide of a semiconductor laser, and providing an electrode terminal being common to the semiconductor laser and the photodetector. CONSTITUTION:A NOR gate of an optical input/output is obtained by laminating a phototransistor on the upper part of other part than the waveguide of a semiconductor laser, and applying a prescribed bias of positive and negative to an electrode terminal 12 being common to the semiconductor laser and the phototransistor, and a semiconductor laser (n) side electrode 14 and an emitter electrode 13, respectively. Subsequently, a current source which is connected to the common electrode terminal 12 is controlled so that an injection current to the semiconductor laser becomes a little larger than an oscillation threshold current. This state is a state of no-input, and with respect to an optical input '0', an optical input '1' of the semiconductor laser is obtained. Next, when an optical input exists in the phototransistor, a current flows between a collector and an emitter, the current injected to the semiconductor decreases, the oscillation stops, and the output goes to '0'. In such a way, an extinction ratio can be made large.
其他摘要	目的：通过在半导体激光器的波导之外的其他部分的上部层叠光电探测器，并提供半导体激光器和光电探测器共用的电极端子，以获得具有大消光比的NOR门。组成：光输入/输出的NOR门是通过在半导体激光器的波导之外的其他部分的上部层压光电晶体管，并将正负极的规定偏压施加到电极端子12而获得的。半导体激光器和光电晶体管，以及半导体激光器（n）侧电极14和发射电极13。随后，控制连接到公共电极端子12的电流源，使得到半导体激光器的注入电流变得略大于振荡阈值电流。该状态是无输入状态，并且对于光输入'0'，获得半导体激光器的光输入'1'。接下来，当光电晶体管中存在光输入时，电流在集电极和发射极之间流动，注入半导体的电流减小，振荡停止，输出变为“0”。以这种方式，可以使消光比变大。
主权项	-
申请日期	1987-10-22
专利号	JP1989108535A
专利状态	失效
申请号	JP1987267006
公开（公告）号	JP1989108535A
IPC 分类号	G02F3/00 \| H01L31/10 \| H01S5/00 \| H01S5/026 \| 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/181661/64764
专题	半导体激光器专利数据库
作者单位	NEC CORP
推荐引用方式 GB/T 7714	OKOCHI SHUNSUKE. Optical logic integrated element. JP1989108535A[P]. 1989-04-25.

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