Binary wavefront control in the focal plane (i.e.,
binary phase-only filtering) for partial compensation of atmospheric turbulence in fiber-coupled free-space laser communication systems is investigated. Numerical results from wave-optics simulations show that in an air-to-air scenario, the combination of binary phase-only filtering and centroid tracking provides mean fiber coupling efficiency close to that resulting from ideal least-squares adaptive optics, but without the requirement for direct wavefront sensing.
This result suggests a simpler and less computationally demanding turbulence mitigation system that is more readily applied to tactical applications.
© 2007 Optical Society of America
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