A compact structure for realizing electromagnetically induced transparency in a microring resonator

摘要

We propose a novel compact structure with EIT-like spectrum by introducing two partial reflectors (silica holes)symmetrically placed within the microring resonator (MRR). The two Fabry-Pérot (FP) resonating cavities created by thesilica holes, coupled with microring’s resonance modes, show EIT-like lineshapes spaced by free spectral range of MRR.The FWHM of EIT-like spectrum can be controlled by tuning the radii of the silica holes. Analytical results from thedeveloped mathematical model and 3D FDTD simulations were found to be in good agreement with each other.