Title :
Phase space description of nonlinear directional couplers
Author :
Artigas, David ; Dios, Federico
Author_Institution :
Dept. de Teoria del Senyal i Comunicacions, Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
7/1/1994 12:00:00 AM
Abstract :
A comprehensive analysis of the symmetric nonlinear directional coupler as a function of the excitation conditions is reported. The analysis is based on a coupled-mode technique in normalized (dimensionless) parameters, using the linear supermodes of the guiding structure, most of the results being derived from the Hamiltonian of the resulting nonlinear equations. The exchange of power between the branches in the coupler is graphically described by means of the trajectories of the motion in the phase space. The effect of saturation of the nonlinear index has been included
Keywords :
directional couplers; optical couplers; optical saturation; phase space methods; Hamiltonian; coupled-mode theory; excitation; guiding structure; linear supermodes; motion trajectories; nonlinear equations; nonlinear index saturation; normalized dimensionless parameters; phase space; power exchange; symmetric nonlinear directional coupler; Communications technology; Couplings; Data processing; Directional couplers; Ear; Equations; Optical fiber communication; Optical waveguides; Space technology; Stability;
Journal_Title :
Quantum Electronics, IEEE Journal of
