Electro-absorption Modulator with Optimized Quantum Well Widths

Abstract

Superconducting electronic devices can operate at high speeds and low power switching, partly due to cryogenic operations, where thermal energy does not interfere with quantum behavior and signaling. Optical interconnects are vital for the operation of these high speed circuits because they can overcome the power, bandwidth, and thermal limitations of electronic counterparts, and can be sensitive to small (< 10 mV) signals. An electro-absorption modulator (EAM) that interfaces with the outside environment has been designed with three quantum wells (QWs) with the aid of simulation software, PhotonDesign, which returns a permittivity spectrum for a particular heterostructure in a waveguide.