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Optimization of a 2D photonic crystal add/drop multiplexer based on contra-directional coupling |
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| Authors: | Michela Svaluto Moreolo Flavia Silvestri Mariateresa Armellino Kurt Hingerl Gabriella Cincotti |
| Affiliation: | aDepartment of Applied Electronics, University Roma Tre, via della Vasca Navale 84, I-00146 Rome, Italy bChristian Doppler Lab, Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz, Austria |
| Abstract: | We present a highly integrated add/drop multiplexer, where the contra-directional coupling is realized by phase matching two photonic crystal waveguides. The device band structure, the corresponding transmission and drop spectra, and the coupling length are carefully analysed. Different device configurations are discussed and by tailoring the coupling factor, we optimize the frequency response of the filter, obtaining a -sized channel selector, characterized by a very high drop efficiency. |
| Keywords: | Photonic crystals Photonic crystal waveguides Contra-directional coupling Add/drop multiplexer |
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