Abstract

We have observed in a planar waveguide strong polarization changes near and above the soliton power. To understand the role of the optical nonlinearities and of the waveguiding structure, we compare influence of Stimulated Rayleigh Wing Scattering (SRWS) and the effect of molecular reorientation on the propagation in waveguide. In CS₂ molecular reorientation is more important than in chloroform. In the later liquid SRWS is not observed but Stimulated Raman Scattering (SRS) appears at low threshold. The results show an interaction between TE and TM components : each one could be amplified according to some input beam characteristics : polarization, waveguide thickness and incident wave vector.

© 2000 IEEE