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Measuring Non-Laser Light Sources with Commercial Laser Beam Profiling Systems

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Measuring Non-Laser Light Sources with Commercial Laser Beam Profiling Systems

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  • Author: Kevin Kirkham
Laser beam profiling products are typically composed of a 2-dimensional sensor array, optical imaging and attenuation optics, and software that displays, analyzes, and records the visual representations of the distribution of light for measurement, archival, and retrieval. The heart of a laser beam profiling system is a scientific grade CCD or CMOS camera. The camera is selected and tested for linearity over the useable range of the system, uniform response, and accuracy. There are no blemishes or inoperative pixels in the sensor arrays that detect the scene and convert it to an electronic signal. The camera is selected for its wide dynamic range and typically has had the window and IR cut-off filter removed so that there are no interfering optics to distort the image or limit the spectral response. Beam profiling cameras typically provide images with signal to noise ratio of 58db or better and are digitized to 12 to 16 bits or more.

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