Numerical 3D simulation of the light propagation in the optical WGM-microresonator by the FDTD method

This work deals with the 3D FDTD (Finite Difference Time Domain) simulation of the light propagation in a WGM (Whispering Gallery Mode) resonator. The computational complexity of such kind of problems is estimated. LRnLA (Locally Recursive non-Locally Asynchronous) algorithms are used in the code implementation of the FDTD method. Two actual numerical simulations were performed: with a short signal and with a prolonged signal. The values of eigenmodes and Q-factor of WGM-resonator were measured numerically. The time dependence of simulated energy pumping is presented.