Multiple quantum well coupling element with losses
作者:
M. Cada,
R. C. Gauthier,
B. E. Paton,
J. M. Glinski,
期刊:
Applied Physics Letters
(AIP Available online 1987)
卷期:
Volume 51,
issue 10
页码: 713-715
ISSN:0003-6951
年代: 1987
DOI:10.1063/1.98897
出版商: AIP
数据来源: AIP
摘要:
A nonlinear directional coupling element consisting of a GaAs‐based multiple quantum well (MQW) heterostructure sandwiched between two slab optical waveguides is analyzed numerically with optical absorption losses in the MQW included. Optical waveguides are designed to be made of lossless AlGaAs slabs of an appropriate composition corresponding to the wavelength of operation. Calculations indicate an improvement in the element’s overall propagation attenuation by about two orders of magnitude when compared to previous results dealing directly with MQW optical waveguides. Promising element performance characteristics are reported.
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