100 ps waveguide multiple quantum well (MQW) optical modulator with 10:1 on/off ratio

Abstract

By incorporating two quantum wells into a capillary waveguide, we have made the first MQW optical modulator with an on/off ratio of at least 10:1. Furthermore, this device was used to generate an optical pulse less than 100 ps long, the fastest to date with an MQW device.