Efficient one-way cleanup of laser beams can be accomplished by holographic matched filtering. Severe amplitude and phase distortions, such as those caused by passage through multimode fibers or ground-glass diffusers, can be compensated for, with theoretical efficiencies of the order of 50% for light in a single state of polarization. Experiments have confirmed the improvement in beam quality.
© 1988 Optical Society of America
Original Manuscript: April 14, 1988
Manuscript Accepted: June 27, 1988
Published: October 1, 1988
M. E. Marhic and A. Pan, "Matched filtering for efficient cleanup of strongly distorted beams," Opt. Lett. 13, 817-819 (1988)