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
D. A. B. Miller and S. D. Smith, "Variable attenuator for Gaussian laser beams," Appl. Opt. 17, 3804-3808 (1978)