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	Semiconductor optical amplification device
	MAGARI KATSUAKI; OKAMOTO KATSUNARI; NOGUCHI ETSUO; YASAKA HIROSHI; MIKAMI OSAMU; KONDO SUSUMU
	1991-04-02
著作权人	NIPPON TELEGR & TELEPH CORP
专利号	JP1991076294A
国家	日本
文献子类	发明申请
其他题名	Semiconductor optical amplification device
英文摘要	PURPOSE:To enable outgoing light rays to be effectively incident on an optical fiber by a method wherein an optical waveguide is provided with a first and a second tapered end, and a semiconductor laminated body is provided with a fourth and a fifth semiconductor layer as optical window layers. CONSTITUTION:An optical waveguide 20 is provided with tapered ends E1 and E2, and a semiconductor laminated body 10 is provided with semiconductor layers M1 and M2 as optical window layers. By this setup, as a semiconductor layer 22 forming the optical guide 20 has such a structure that its width W is larger than its thickness T, the size of a spot in term of a light propagation mode on the semiconductor laminated body end face F2 which serves as a light emitting face can be made nearly equal in both the widthwise direction and the thicknesswise direction of the semiconductor layer 22 which constitutes the optical waveguide 20. Therefore, in this case, when an outgoing light ray is transmitted through an optical fiber, the outgoing light ray can be effectively incident on the optical fiber concerned.
公开日期	1991-04-02
申请日期	1989-08-18
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/75884]
专题	半导体激光器专利数据库
作者单位	NIPPON TELEGR & TELEPH CORP
推荐引用方式 GB/T 7714	MAGARI KATSUAKI,OKAMOTO KATSUNARI,NOGUCHI ETSUO,et al. Semiconductor optical amplification device. JP1991076294A. 1991-04-02.

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