TITLE

Model of a nonlinear directional coupler in gallium arsenide

AUTHOR(S)
Gibbons, Wayne M.; Sarid, Dror
PUB. DATE
August 1987
SOURCE
Applied Physics Letters;8/10/1987, Vol. 51 Issue 6, p403
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have calculated the response of a nonlinear directional coupler fabricated in an AlGaAs/GaAs structure using a realistic model for the optical nonlinearities. The model takes into account carrier-density-dependent index of refraction and absorption, and lateral carrier diffusion in each of the two coupled channel waveguides. Our results differ considerably from those obtained using a Kerr model for the optical nonlinearities.
ACCESSION #
9823831

 

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