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	1991-10-09
著作权人	NIPPON DENKI KK
专利号	JP1991065029B2
国家	日本
文献子类	授权发明
其他题名	-
英文摘要	PURPOSE:To obtain a light output from the upper surface of a diffractive element without forming cleavage surfaces at both sides of the element by constructing the diffraction lattice of a mirror unit using a primary Bragg reflection and an output pickup unit using high order Bragg reflection in divisions. CONSTITUTION:A diffraction lattice 1 using primary Bragg reflection of LAMBDA1= lambda/2n and a diffraction lattice 3 using secondary Bragg reflection of LAMBDA2=lambda/n are formed on the (001) plane of an n-type InP, and a guide layer 4 of n-type InGaAsP (forbidden band width of 2mum), an active layer 5 of InGaAsP(3mum), a guide layer 6 of p type InGaAsP(1mum), a p type InP clad layer, a Zn diffused layer 8 of current injection stripe, an n type InP cap layer 9, a p type side electrode 10, and an n type side electrode 11 having a light output pickup window 12 are attached thereto. According to this structure, pellets can be readily cut without necessity of cleavage surface, the region obtaining the light output can be limited, the coupling rate to an optical fiber is high, and a laser oscillation is obtained by feedback using the diffraction lattice. Accordingly, a laser which is formed in a monoaxial mode can be obtained.
公开日期	1991-10-09
申请日期	1981-04-15
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/79253]
专题	半导体激光器专利数据库
作者单位	NIPPON DENKI KK
推荐引用方式 GB/T 7714	-. -. JP1991065029B2. 1991-10-09.

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