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30 April 2003 Dual-function adaptive optics to mitigate atmospheric effects in a laser communication system
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Proceedings Volume 4976, Atmospheric Propagation; (2003)
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States
The degrading effects of the atmosphere on a laser communication link can be partially removed with a combination of conventional low-order adaptive optics and other adaptive techniques. Recent experiments performed at UNC Charlotte indicate a measureable reduction in the bit-error rate for a laser communication system by correcting for the phase effects of propagation that are manifested in scintillation at the receiver. Further implementation of an adaptive field-of-view can help to reduce the effect of wide-angle scattering that appears in the extinction ratio. The theory and predictions of the combined adaptive techniques will be discussed along with a description and results of a laboratory experiment replicating a monostatic 1.55 μm laser propagation with a cooperative wavefront beacon at the receiver. The result is scaled to represent an actual propagation of 6 km under moderately high scintillation conditions.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert K. Tyson "Dual-function adaptive optics to mitigate atmospheric effects in a laser communication system", Proc. SPIE 4976, Atmospheric Propagation, (30 April 2003);

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