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	Semiconductor laser-based spectrometer
	JAYARAMAN, VIJAYSEKHAR
	2006-12-14
著作权人	JAYARAMAN VIJAYSEKHAR
专利号	US20060280216A1
国家	美国
文献子类	发明申请
其他题名	Semiconductor laser-based spectrometer
英文摘要	A semiconductor laser-based spectrometer according to the present invention includes a plurality of semiconductor lasers comprising a plurality of semiconductor gain medium compositions directly coupled to a large-core multi-mode fiber with no intervening optics. An output radiation from the multi-mode fiber is tunable by switching the drive current amongst the lasers, and by thermal tuning of each laser in the array. In combination with presentation to a sample, and means for detection of a diffuse reflectance or transmittance, this assembly functions as a compact, high signal to noise ratio, fast measurement spectrometer. In one preferred embodiment of this invention the plurality of semiconductor lasers consists of Fabry-Perot edge-emitting lasers arranged around the perimeter of a cylindrical submount with a substantially circular cross-section. In another preferred embodiment a linear array of Fabry-Perot edge-emitting lasers is directly coupled to a multi-mode fiber. In still another preferred embodiment, a two-dimensional array of vertical cavity surface-emitting lasers is directly coupled to a multi-mode optical fiber.
公开日期	2006-12-14
申请日期	2006-06-06
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/51533]
专题	半导体激光器专利数据库
作者单位	JAYARAMAN VIJAYSEKHAR
推荐引用方式 GB/T 7714	JAYARAMAN, VIJAYSEKHAR. Semiconductor laser-based spectrometer. US20060280216A1. 2006-12-14.

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