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(a) Top view of the PCW crossing structures. Details of the waveguide intersection configurations for C0 and C1 are shown in the right, while dimensions are described in the text. (b) Side view of the PCW, showing the vertical structure.
(a) Transmission spectra for the C0 configuration. Black and gray lines represent “throughput” and “cross talk,” respectively. (b) -field profile in the C0 configuration at the frequency , obtained by FDTD simulation.
(a) Transmission spectra for the “throughput” (black) and “cross talk” (gray) in the C1 configuration. The arrow marks the frequency region for cross talk reduction associated with the intersection cavity resonance. (b) -field profile in the C1 configuration, obtained by FDTD simulation at the frequency .
Comparison between transmission spectra of the (solid) and the C1 “throughput” (dotted). The inset is the schematic diagram of the structure.
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