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We have designed a multi-port channel-drop filter (MCDF) based on a two-dimensional photonic crystal (PhC) with a Fabry–Pérot reflector at the end of the bus waveguide. The conditions to achieve 100% drop efficiency at the resonance frequency were derived through the coupled mode theory in time and the transmission properties for such structure were calculated by finite-difference time-domain (FDTD)...
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