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D. A. B. Miller and S. D. Smith,
"Variable Attenuator for Gaussian Laser Beams," Applied Optics 17,
3804-3808 (1978). 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 >10/sup 5/, is presented
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