GaAs/AlGaAs multiple quantum well field-induced optical waveguide
- 9 July 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (2) , 114-116
- https://doi.org/10.1063/1.103959
Abstract
Electrically controllable optical waveguides have been created by using only the increase in refractive index from linear and quadratic electro-optic effects in GaAs/AlGaAs multiple quantum well substrates for the first time. Unlike conventional fixed waveguides, lateral guiding of this field-induced guide (FIG) can be turned on and off, so that the confinement factor, propagation constant, and net loss can be adjusted over wide ranges electrically. This special property plus a very simple fabrication process suggest that the FIG could be an important base technology for photonic integrated circuits.Keywords
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