Photodetection device and light source module

OPT OpenIR > 半导体激光器专利数据库

	Photodetection device and light source module
其他题名	Photodetection device and light source module
	KAKUI, MOTOKI
	2006-09-07
专利权人	SUMITOMO ELECTRIC INDUSTRIES, LTD.
公开日期	2006-09-07
授权国家	美国
专利类型	发明申请
摘要	There is disclosed a photodetection device comprising: a photodetector having detection sensitivity at a first wavelength; a first optical fiber propagating light in a plurality of modes at the first wavelength, the first optical fiber having an entrance end on which light at the first wavelength falls; and a second optical fiber propagating light in a plurality of modes at the first wavelength, the second optical fiber having a product of a core diameter and a numerical aperture at the first wavelength that is greater than a product of a core diameter and a numerical aperture at the first wavelength of the first optical fiber, the second optical fiber having one end and another end, the second optical fiber being optically coupled to the first optical fiber at the middle of the first optical fiber in a longitudinal direction of the first optical fiber, and the one end of the second optical fiber being optically coupled to the photodetector.
其他摘要	公开了一种光电检测装置，包括：光检测器，具有第一波长的检测灵敏度;第一光纤以第一波长的多种模式传播光，第一光纤具有入射端，第一波长的光落在该入射端;第二光纤以第一波长的多种模式传播光，第二光纤具有第一波长的纤芯直径和数值孔径的乘积，其大于纤芯直径和数值孔径的乘积在第一光纤的第一波长处，第二光纤具有一端和另一端，第二光纤在第一光纤的纵向方向上光耦合到第一光纤中间的第一光纤第二光纤的一端光耦合到光检测器。
主权项	A photodetection device comprising: a photodetector having detection sensitivity at a first wavelength; a first optical fiber propagating light in a plurality of modes at the first wavelength, the first optical fiber having an entrance end on which light at the first wavelength falls; and a second optical fiber propagating light in a plurality of modes at the first wavelength, the second optical fiber having a product of a core diameter and a numerical aperture at the first wavelength that is greater than a product of a core diameter and a numerical aperture at the first wavelength of said first optical fiber, the second optical fiber having one end and another end, the second optical fiber being optically coupled to said first optical fiber at the middle of said first optical fiber in a longitudinal direction of said first optical fiber, and the one end of the second optical fiber being optically coupled to said photodetector.
申请日期	2006-03-01
专利号	US20060198582A1
专利状态	失效
申请号	US11/364364
公开（公告）号	US20060198582A1
IPC 分类号	G02B6/26
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53773
专题	半导体激光器专利数据库
作者单位	SUMITOMO ELECTRIC INDUSTRIES, LTD.
推荐引用方式 GB/T 7714	KAKUI, MOTOKI. Photodetection device and light source module. US20060198582A1[P]. 2006-09-07.