Resonance-based optical routing and nonreciprocity in photonic molecules with coupled whispering gallery modes

摘要

Through numerical modeling, we study routing of the light pulses in coupled cylindrical whispering gallery mode microresonators. The coupling of light in and out of such structures is provided using strip-waveguides. We show that such photonic molecules display a complicated resonant behavior, leading to a nonreciprocal transport and a wavelength-dependent connectivity of the optical ports.