Pump induced normal mode splittings in phase conjugation in a Kerr nonlinear waveguideS DUTTA GUPTASchool of Physics, University of Hyderabad, Hyderabad 500 046, India Abstract. Phase conjugation in a Kerr nonlinear waveguide is studied with counter-propagating normally incident pumps and a probe beam at an arbitrary angle of incidence. Detailed numerical results for the specular and phase conjugated reflectivities are obtained with full account of pump depletion. For sufficient strengths of the pump a normal mode splitting is demonstrated in both the specular and the phase conjugated reflectivities of the probe wave. The splitting is explained in terms of a simple model under undepleted pump approximation. Keywords Phase conjugation; nonlinear waveguide; normal mode splitting. Pacs No. 42.65.Wi; 42.65.Hw; 42.65.Ky |