We have used a dynamic diffractive spatial light modulator for adaptive beam steering. With adaptive beam steering it is possible to substantially reduce the alignment accuracy needed for the assembly of a free-space optical switch and to make it adaptive to changes in the environment during operation.
© 2000 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(230.0230) Optical devices : Optical devices
(230.1950) Optical devices : Diffraction gratings
(230.6120) Optical devices : Spatial light modulators
M. Johansson, S. Hård, B. Robertson, I. Manolis, T. Wilkinson, and W. Crossland, "Computer-controlled, adaptive beam steering, implemented in a FLC-SLM free-space optical switch," in Diffractive Optics and Micro-Optics , T. Li, ed., Vol. 41 of OSA Trends in Optics and Photonics (Optical Society of America, 2000), paper PD1.