title: Variable attenuator for Gaussian laser beams.
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 >10(5), is presented.
authors.forename: D A
authors.initials: DA
authors.lastname: Miller
authors.forename: S D
authors.initials: SD
authors.lastname: Smith