Laser beam profiling with extended-image-range techniques -: art. no. 023602

被引:3
作者
González-Moreno, R [1 ]
Quiroga, JA [1 ]
Alonso, J [1 ]
Bernabeu, E [1 ]
机构
[1] Univ Complutense Madrid, Dept Opt, Ciudad Univ SN, E-28040 Madrid, Spain
关键词
D O I
10.1117/1.1840931
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A method to enlarge the dynamic range of a CCD-based laser beam profiler is presented. The method is based on extended-image-range techniques. The algorithm that generates the extended-irradiance-range image is described in detail. An equivalent dynamic range and number of bits are defined and computed for the new profiling system. To test the method, experimental measurements of the principal widths of the output beam from a single-mode optical fiber have been made, as well as the Fraunhofer diffraction pattern of a 200-mu m pinhole back-illuminated by a HeNe laser. (c) 2005 Society of Photo-Optical Instrumentation Engineers.
引用
收藏
页码:1 / 6
页数:6
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