Abstract
Self-electro-optic effect devices (SEEDs) using the Wannier-Stark localization (WSL) effect1 have a high-contrast on/off ratio for modulator applications. Previously, SEEDs based on the WSL effect have been reported for GaAs/AlGaAs(AlAs) superlattices (SLs) on GaAs substrate2,3 and for In0.53Ga0.47As/In0.52Al0.48As SLs on InP substrate.4 In these systems, however, the operating wavelength was restricted because the lattice constant in SLs must be equal to that of the substrate.
© 1994 Optical Society of America
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