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Atmospheric aberrations in coherent laser systems Snowmass, July 12, 2007 Aniceto Belmonte belmonte@tsc.upc.edu 2 Atmospheric Optical Systems 3 ã Simulated Experiments on Atmospheric Propagation ã Compensation Methods on Coherent Measurements ã Beam Projection on Coherent Lidars ã Conclusions Index Work Basis ãOptical phase perturbations destroy the spatial coherence of a laser beam as it propagates through the atmosphere. It restricts the received power levels i
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  Atmospheric aberrations in coherent laser systems Snowmass, July 12, 2007Aniceto Belmontebelmonte@tsc.upc.edu  2 Atmospheric Optical Systems  3 ã Simulated Experiments on Atmospheric Propagation ã Compensation Methods on Coherent Measurements ã Beam Projection on Coherent Lidars ã Conclusions Index  Work Basis ã O ptical phase perturbations destroy the spatial coherence of a laser beamas it propagates through the atmosphere. It restricts the received powerlevels in optical coherent systems . ã T emporal fading associate with optical amplitude fluctuations increasesthe uncertainty in the measurements.   ã P erformance limitations imposed by atmospheric turbulence on specificcoherent systems need to be quantify. ã Main task is the quantification of the performance achievable in coherentoptical systems using atmospheric compensation techniques .
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