Antisymmetric grating coupler: experimental results.
The principle of an antisymmetric grating coupler was recently proposed theoretically as a planar waveguide add-drop multiplexer. It has the potential to enhance significantly the functionality of an add-drop multiplexer based on grating-assisted coupling. Here we realize the concept experimentally in an all-fiber geometry. We show that conventional devices exhibit two high-reflection bands. In contrast, the antisymmetric grating coupler has only a single reflection band, thereby dramatically improving its filtering characteristics.
Aslund
Mattias
M
Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Australian Technology Park, Eveleigh, Sydney NSW 1430, Australia. m.aslund@oftc.usyd.edu.au
Canning
John
J
Poladian
Leon
L
de Sterke
C Martijn
CM
Judge
Alex
A