ABSTRACT
High-speed/small-size light modulators and optical switches are a challenging core technology for self-organized 3D integrated optical interconnects. In the present chapter, light modulators and optical switches are classified, and the superiority of flux-controlled devices over phase-controlled devices in large-scale integration is emphasized. As an example of flux-controlled devices, the waveguide prism deflector (WPD) is described, and the predicted performance is compared with that of other types of devices. To realize high-speed/small-size light modulators and optical switches, materials having enhanced electric-field-induced refractive-index-change characteristics are essential. To design structures of WPDs and estimate their expected performance, Lead lanthanum zirconate titanate and polymer multiple quantum dot were assumed for electro-optic materials.
