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	Heat sink with beam-like shaped surface
	AOYANAGI TOSHITAKA
	1989-06-13
著作权人	MITSUBISHI ELECTRIC CORP
专利号	JP1989150380A
国家	日本
文献子类	发明申请
其他题名	Heat sink with beam-like shaped surface
英文摘要	PURPOSE:To shape up the shape of a laser beam on the surface of reflection and to impart a phase adjusting function to an array laser by a method wherein recesses and projections, having a certain inclination against the light emitted from a laser diode, are cyclically provided on the reflection surface of a heat sink. CONSTITUTION:An array laser 2 is mounted on a heat sink 10, a low reflection factor coating 3 and a high reflection factor coating 4 are provided on the heat sink 10, and the reflection surfaces A11 and B12 having different reflection factor are formed respectively. A tilt angle theta13 is given to the reflection surfaces A11 and B12, a stepping h14 is provided on the reflection surfaces A11 and B12, and a light path difference l15 is provided on the reflection surfaces A11 and B12. The stepping (h) of said reflection surfaces A11 and B12 is set at 2N+1/2.lambdacostheta, and the light path difference l14 of an output light is set at N+1/2.lambda. The laser beam radiated from a stripe 6 is reflected by the reflection surfaces All or B12, the change of phase is shifted by (2N+1)pi radian, and the shape of the laser beam discharged from the adjacent stripe 6 is shaped up using a single constitution.
公开日期	1989-06-13
申请日期	1987-12-07
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/89514]
专题	半导体激光器专利数据库
作者单位	MITSUBISHI ELECTRIC CORP
推荐引用方式 GB/T 7714	AOYANAGI TOSHITAKA. Heat sink with beam-like shaped surface. JP1989150380A. 1989-06-13.

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