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	Light source
	ERIASU SUNITSUTSUAA; SHIYAOURU EZEKIIRU
	1986-05-19
著作权人	POLAROID CORP
专利号	JP1986100707A
国家	日本
文献子类	发明申请
其他题名	Light source
英文摘要	A super-radiant light source having an output with a low temporal coherence well suited, for example, to optical inertial sensor applications, includes a single mode optical waveguide such as an optical fiber having its core doped with an active laser material, such as neodymium. Pump light is coupled into the optical fiber at an intensity sufficient to produce a significant amplification of the spontaneous emission. The reflectivity at the exit end of the fiber is low enough so that even with a high gain for the light in one traverse through the fiber, the fiber is operated well below threshold for laser oscillation. The resulting emission is of high intensity, but has a low temporal coherence. In one form, the pump light is coupled into one end of the fiber and a dichroic filter is interposed in the light path between the pump light and the optical fiber to pass pump light into the core and reflect the spontaneous emission of the active material back into the core and toward the output.
公开日期	1986-05-19
申请日期	1985-10-21
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/84505]
专题	半导体激光器专利数据库
作者单位	POLAROID CORP
推荐引用方式 GB/T 7714	ERIASU SUNITSUTSUAA,SHIYAOURU EZEKIIRU. Light source. JP1986100707A. 1986-05-19.

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