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Variable attenuator for Gaussian laser beams

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Abstract

A method of attenuating laser beams is described, which is continuously variable, gives an output beam of constant Gaussian shape, and is adaptable to a wide range of laser types and power levels. The theory of the method is discussed, and the performance of a prototype system, used with a CO laser and having a dynamic range of >105, is presented.

© 1978 Optical Society of America

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