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	Optical integrated circuit
	OKUDA HIROSHI; MATSUOKA HARUJI; OKAMOTO KENJI
	1985-09-10
著作权人	SUMITOMO DENKI KOGYO KK
专利号	JP1985176289A
国家	日本
文献子类	发明申请
其他题名	Optical integrated circuit
英文摘要	PURPOSE:To change over a main semiconductor laser to a spare semiconductor laser in a very short time by integrating a Y branch element for introducing the main laser, the spare laser and output beams to one optical guide on the same semiconductor substrate. CONSTITUTION:A p-InP clad layer 2, an InGaAsP active layer 3, an n-InP clad layer 4 and a p-InGaAsP layer 5 are grown in a groove in a semi-insulating InP substrate A Y branched waveguide and an FET gate section are processed through photolithography. A grating 8 for Bragg reflection is formed to one part of the clad layer 4. Photodiodes 6, 7 use the layer 5 as the anode side and the layer 4 as the cathode side, and detect the intensity of beams projected to a p-n junction surface. Laser diodes (LD)10, 11 are constituted by the clad layer 4, the active layer 3, the clad layer 2, gratings 8, 9 and cleavage planes 12. One side of a resonator is formed in the cleavage plane 12, and laser beams are projected to a collective waveguide 17 from the Y type branch line 14. FETs 18, 19 modulate and drive the LDs 10, 1
公开日期	1985-09-10
申请日期	1984-02-22
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/84938]
专题	半导体激光器专利数据库
作者单位	SUMITOMO DENKI KOGYO KK
推荐引用方式 GB/T 7714	OKUDA HIROSHI,MATSUOKA HARUJI,OKAMOTO KENJI. Optical integrated circuit. JP1985176289A. 1985-09-10.

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