Coupled-Wave Solution of Harmonic Generation in an Optically Active Medium

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Abstract
The equations governing the propagation and growth of coupled fields in a rotatory dispersive nonlinear medium are derived, making use of the method of Armstrong, Bloembergen, Ducuing, and Pershan. The results obtained for the intensity of harmonic radiation and the conditions for phase matching are compared to those obtained previously for propagation along the optic axis of crystals of point symmetry 32, and are found to be identical in the limiting case of nonattenuation of the fundamental wave. The coupled solutions for buildup of second-harmonic radiation are examined in the phase-matched case, and it is shown that the growth of circularly polarized harmonic light results from the depletion of the fundamental of opposite sense of circular polarization.