作者: Alessandro Ciattoni , Gabriella Cincotti , Claudio Palma , Horst Weber
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摘要: The evolution of the optical power associated with Cartesian components a paraxial beam propagating along axis in uniaxial crystal is investigated. energy exchange found to undergo saturation that due both diffraction and coupling between x- y-field components; for linearly polarized circularly symmetric input beams, asymptotic always amounts quarter total power. general results are applied case astigmatic Gaussian which admits fully analytical description. finite length crystals also considered.