Demonstration of mode conversion in an irregular waveguide.
Communications wavelength waveguide mode conversion is demonstrated in an irregular metal-walled structure that was designed by using multiresolution optimization. Strong scatter and a large number of degrees of freedom allowed high-efficiency conversion in a device having a length of just a few wavelengths. The fabrication approach draws on standard semiconductor processing. Mode-selective reflectors, splitters, phase shifters, and other elements can be achieved by using this principle.
School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
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M
Yang
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Chen
K J
KJ
Webb
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Minin
S L
SL
Chuang
G R
GR
Cueva