A finite element beam propagation method to analyze nonlinear active optical waveguides ispresented. The model takes into account the mutual coupling among the equations describing the elec-tromagnetic field propagation and the ones governing the signal amplification due to a doped medium.The approach is able to distinguish the different behavior of Ex (quasi-TE) and Ey (quasi-TM) polariza-tions. The performances of nonlinear and doped couplers are analyzed in detail by varying the inputpower, the field polarization and the pumping scheme.
Active Nonlinear Integrated Optical Devices: a Numerical Analysis / Cucinotta, ; S., Selleri; Vincetti, Luca; Zoboli, Maurizio. - In: OPTICAL AND QUANTUM ELECTRONICS. - ISSN 0306-8919. - STAMPA. - 31:(1999), pp. 1073-1084. [10.1023/A:1006908729987]