DETERMINATION OF NONDIAGONAL COMPONENT N2B-PERPENDICULAR-TO OF NONLINEAR REFRACTIVE-INDEX IN POLARIZATION-MAINTAINING FIBERS UTILISNG OPTICAL KERR MODULATION SCHEME

The nondiagnonal component n//2//B// PERPEND of the nonlinear refractive index is measured relative to the diagonal component n//2//B// parallel in polarization-maintaining fibers utilizing optical Kerr modulation properties in the presence of chromatic and polarization dispersion. The ratio n//2//B// PERPEND /n//2//B// parallel is determined to be 0. 34 and is in good agreement with the theoretical prediction of 1/3, which assumes isotropic media and a pure electronic contribution.