DESIGN OF HIGH-PERFORMANCE QUANTUM-WELL ELECTRON-TRANSFER MODULATORS VIA SELF-CONSISTENT MODELING

We successfully use a self-consistent physical model to predict device performance in a chopped quantum well electron transfer modulator. La rge built-in electric fields for this structure cause delocalization o f the electron wave function, requiring a careful evaluation of excito nic effects. Our calculations of both the electrical and electro-optic properties are in remarkably good agreement with the experimental dat a once Coulomb interactions are properly taken into account. (C) 1994 American Institute of Physics.