Electrodispersive multiple quantum well modulator
- 31 October 1988
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (18), 1684-1686
- https://doi.org/10.1063/1.99797
Abstract
Quantum-confined Stark effect is combined with a Fabry–Perot resonance to build a multiple quantum well electro-optic modulator. The structure consists of GaAs/AlGaAs quantum wells between two epitaxial AlAs/AlGaAs dielectric multilayer mirrors, all grown by molecular beam epitaxy. The modulator uses refractive index changes induced by applied electric fields. In reflection mode of operation, the modulator demonstrates >5:1 contrast ratio and >50% absolute maximum reflectivity with 17 V applied.Keywords
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