Abstract

We propose coupled-mode analysis of a two-dimensional photonic crystal add–drop filter based on ring resonators, which can be applicable to photonic integrated circuits. Mechanism of this proposed add–drop filter is analogous to that of ring resonators resonance, which involves interaction of waveguides and resonators. Simulation results of this filter obtained from the finite-difference time-domain method are consistent with those from the coupled-mode theory. Total transmission up to 99% is verified by both methods.

© 2008 Optical Society of America

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