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Schematic layout of the quarter CPC lattice structure with CSWG. (a) The concentric distance at the surface is . (b) The surface concentric distance at the surface is reduced to .
(a) Transmission spectra for the CSWG surface concentric period of (dash line) and (solid line). Smaller surface concentric period gives higher power transmission due to smoother changes in magnitude and direction vector of the propagating lightwave. (b) Constant frequency contour at frequency of 0.365 for different and directions.
(a) Schematic layout of the frequency-selective circulator with three resonator systems for different dropping frequencies. (b) Enlarged layout of the side coupled system with CSWG and resonator system.
Simulated results of electric field distribution of the frequency-selective circulator at (a) 0.34 , (b) 0.365 , and (c) 0.355 . (d) Transmission spectrum for different frequencies. It is shown that the dropping efficiency is average 96% for three frequencies.
The physical parameters for different dropping frequencies in the circulator.
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