Optical transformer and system using same

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	Optical transformer and system using same
其他题名	Optical transformer and system using same
	ALFREY, ANTHONY J.
	2003-01-07
专利权人	ALFREY ANTHONY J.
公开日期	2003-01-07
授权国家	美国
专利类型	授权发明
摘要	An optical system modifies the optical orientation of the individual sources of a laser diode array so that the illumination provided by said individual sources may be combined into a single target location, while providing illumination at said target with the brightness of the individual sources. A first set of uniformly-spaced parallel light beams, said parallel beams defining a horizontal plane, is repositioned into a second set of uniformly-spaced parallel light beams, also defining a second horizontal plane but propagating in a direction perpendicular to the original light beams, with said second horizontal plane offset from said first horizontal plane, while the relative orientation of the high-brightness and low-brightness axes of said light beams with respect to the horizontal is interchanged. Three transformers are used to accomplish this reorientation. The first of said transformers consists of a series of flat mirrors, placed parallel to each other and angularly oriented such that the optical beam from each of said sources is deflected into a angle determined by the relative position of said sources. The second transformer consists of a Fourier transform lens which projects a Fourier transformation of the angular and spatial distribution of light beams created by said first transformer, onto a third transformer. The third transformer consists of a mirrored optical device which can be made substantially identical to said first transformer, and which removes the angular displacement of said linearly-dispersed optical beams induced by said Fourier transform lens, resulting in a series of parallel light beams dispersed horizontally, with the high-brightness axis of the elliptical intensity profile of each said beam aligned coaxially. This distribution of light beams may then be focused into an optical fiber, laser gain medium or other device requiring the brightness-conserving coupling of individual optical sources into a single target location.
其他摘要	光学系统修改激光二极管阵列的各个光源的光学取向，使得由所述各个光源提供的照明可以组合成单个目标位置，同时在所述目标处提供具有各个光源的亮度的照明。第一组均匀间隔的平行光束，所述平行光束限定水平面，被重新定位到第二组均匀间隔的平行光束中，也定义第二水平面但在垂直于原始光束的方向上传播所述第二水平面偏离所述第一水平面，而所述光束的高亮度和低亮度轴相对于水平面的相对取向互换。三个变压器用于完成这种重新定向。所述变压器中的第一个由一系列平面镜组成，这些平面镜彼此平行且成角度地放置定向使得来自每个所述光源的光束偏转到由所述光源的相对位置确定的角度。第二变压器包括傅里叶变换透镜，其将由所述第一变压器产生的光束的角度和空间分布的傅立叶变换投影到第三变压器上。第三变压器包括一个镜像光学装置，它可以与所述第一变压器基本相同，并消除由所述傅立叶变换透镜引起的所述线性分散光束的角位移，从而产生一系列水平分散的平行光束。，每个所述光束的椭圆强度分布的高亮度轴同轴对齐。然后，光束的这种分布可以聚焦到光纤，激光增益介质或需要将各个光源的亮度保持耦合到单个目标中的其他装置中。位置。
授权日期	2003-01-07
申请日期	2000-10-18
专利号	US6504650
专利状态	失效
申请号	US09/691748
公开（公告）号	US6504650
IPC 分类号	G02B27/09 \| G02B27/10 \| G02B5/08
专利代理人	-
代理机构	HAYNES, MARK A. HAYNES BEFFEL & WOLFELD LLP
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/36697
专题	半导体激光器专利数据库
作者单位	ALFREY ANTHONY J.
推荐引用方式 GB/T 7714	ALFREY, ANTHONY J.. Optical transformer and system using same. US6504650[P]. 2003-01-07.

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