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	Light source for optical head
	FUJIWARA MASAHIKO
	1983-11-16
著作权人	NIPPON DENKI KK
专利号	JP1983196634A
国家	日本
文献子类	发明申请
其他题名	Light source for optical head
英文摘要	PURPOSE:To obtain a beam which contains two wavelengths and is coincident with optical axes, by fusing the 1st and 2nd lasers onto a heat sink with their end faces set adjacently to each other so that the radiated light of the 2nd laser is connected to a 3-dimensional optical waveguide of the 1st laser having a wavelength different from the 2nd laser. CONSTITUTION:A semiconductor laser LD20a of an oscillating wavelength lambda1 is provided together with a semiconductor laser LD20b of a wavelength lambda2 longer than the lambda These two lasers are fused onto a heat sink 22 with their end faces set close and opposite to each other so that the output light of the LD20b is connected to a 3-dimensional optical waveguide formed at the light emitting part of the LD20a. In such constitution, the output of the LD20b is propagated at the inside of the LD20a and radiated from the end face of the LD20a in the form of output light 21c together with the output 21a of the LD20a. As a result, it is possible to obtain a light beam which contains two different wavelengths having optical axes coincident perfectly with each other. This process produces a light source for optical head which has easy control of its optical system and high reliability.
公开日期	1983-11-16
申请日期	1982-05-12
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/64598]
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	FUJIWARA MASAHIKO. Light source for optical head. JP1983196634A. 1983-11-16.

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