GaAs/Al/sub x/Ga/sub 1-x/As superlattice waveguide absorption modulators with very low drive voltage

Abstract

The first GaAs/Al/sub x/Ga/sub 1-x/As superlattice waveguide absorption modulators operating at approximately 860 nm that utilize the Wannier-Stark effect are reported. The n=-1 Stark ladder peak, which is the transition from the valence band well to the nearest neighbor conduction band well, is used. This peak shifts rapidly with applied electric field… (More)

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