Model of a nonlinear directional coupler in gallium arsenide
作者:
Wayne M. Gibbons,
Dror Sarid,
期刊:
Applied Physics Letters
(AIP Available online 1987)
卷期:
Volume 51,
issue 6
页码: 403-405
ISSN:0003-6951
年代: 1987
DOI:10.1063/1.98403
出版商: AIP
数据来源: AIP
摘要:
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.
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