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	Light source apparatus for measurement
	WAKANA SHINICHI; FURUKAWA YASUO
	1987-11-16
著作权人	FUJITSU LTD
专利号	JP1987263684A
国家	日本
文献子类	发明申请
其他题名	Light source apparatus for measurement
英文摘要	PURPOSE:To make it possible to correct the dispersion of oscillation frequency difference between two semiconductor laser elements, by a method wherein two semiconductor elements arranged on a heat sink with temperature gradient are used as a laser light source, and the temperature gradient is produced also between the two elements. CONSTITUTION:Semiconductor laser elements 1 and 2 having different oscillation frequencies are used, whose injection current can be controlled by a current controlling part 3. Further, the elements 1 and 2 are arranged along a temperature gradient on a heat sink 4 on which the temperature gradient is produced. This temperature gradient is produced from both ends of the heat sink 4 as the result of a specific temperature control applying a temperature controlling part 5. As the temperature gradient of the heat sink 4 can be controlled by the temperature controlling part 5, the temperature gradient can be produced also between the two semiconductor laser elements 1 and 2. Thereby, a desired frequency difference ¦f1-f2¦ can be obtained in response to the temperature gradient rather simply and exactly.
公开日期	1987-11-16
申请日期	1986-05-10
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/63026]
专题	半导体激光器专利数据库
作者单位	FUJITSU LTD
推荐引用方式 GB/T 7714	WAKANA SHINICHI,FURUKAWA YASUO. Light source apparatus for measurement. JP1987263684A. 1987-11-16.

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