Design and analysis of electroabsorptive quantum well based double ring resonators for wavelength switching applications

We propose and present the design and analysis of a new double ring resonator structure for switching applications. The structure is based on the use of quantum wells that act as the active light guiding medium. The proposed ring resonator structure can be turned on or off by varying the absorption in the rings through external applied voltages. The absorption spectra are calculated for various quantum well designs using a simple model to predict the switching characteristics of double ring resonator structure. Simulation results show that amount of switching is a strong function of absorption, and is critically dependent on quantum well parameters and the applied electric field.