Combining FDTD with coupled mode theories for bistability in micro-ring resonators

Yannick Dumeige (1) , Carole Arnaud (1) , Patrice Féron (1)

1 FOTON - Fonctions Optiques pour les Technologies de l'informatiON

An association of the finite-difference time domain (FDTD) method together with coupled mode theories (CMTs) has been applied to the study of the bistable properties of whispering gallery mode (WGM) micro-ring resonators. The semi-analytical results obtained are compared with numerical nonlinear full calculations (nonlinear FDTD). It is shown that CMTs allow a good quantitative description of the stationary and dynamical behaviors of the bistability in such micro-resonators. As an example, we treat the case of a polymer micro-ring in a symmetrical dual coupling configuration.

Mots clés: Micro-resonator; Nonlinear optics; Coupled modes theory; Bistability; Integrated optics

Domaines: Optique [physics.optics]

Yannick Dumeige, Carole Arnaud, Patrice Féron. Combining FDTD with coupled mode theories for bistability in micro-ring resonators. Optics Communications, 2005, Vol.250 (Issues 4-6), pp.376-383. ⟨10.1016/j.optcom.2005.02.025⟩. ⟨hal-00023326⟩