Photonic crystal channel drop filter with wavelength-selective reflection micro-cavity

Abstract

Abstract:

A new configuration of four-port channel drop filter in two dimensional photonic crystals (2D PCs) is presented in the paper. In this structure, three micro-cavities are used. Two micro-cavities are used to realize wavelength-selective reflection feedback. The other is used for resonant tunneling-based channel drop filter. Using coupled mode theory (CMT), the conditions to achieve 100% drop efficiency are derived. The simulation results by using the two dimensional FDTD method show a good agreement with the CMT result, and show that this configuration is feasible.

Key words: optical communication, channel drop filter, coupled mode theory, photonic crystal, wavelength-selective reflection micro-cavitiy

CLC Number:

O439

DU Ke. Photonic crystal channel drop filter with wavelength-selective reflection micro-cavity[J]. J4, 2009, 26(4): 489-493.

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