1Department of Physics, Harbin Institute of Technology, Harbin 150001 2Department of Electronic Science and Technology, Harbin Institute of Technology, Harbin 150001 3Communication Research Center, Harbin Institute of Technology, Harbin 150001
Abstract：From Maxwell's equations and Post's formalism, a generalized chiral nonlinear Schr?dinger equation (CNLSE) is obtained for the nonlinear chiral fiber. This equation governs light transmission through a dispersive nonlinear chiral fiber with joint action of chirality in linear and nonlinear ways. The generalized CNLSE shows a modulation of chirality to the effect of attenuation and nonlinearity compared with the case for a conventional fiber. Simulations based on the split-step beam propagation method reveal the role of nonlinearity with cooperation to chirality playing in the pulse evolution. By adjusting its strength the role of chirality in forming solitons is demonstrated for a given circularly polarized component. The application of nonlinear optical rotation is also discussed in an all-optical switch.
2016, Vol. 33 
