Abstract

A signal interleaver/ deinterleaver based on ring resonators is proposed and analyzed with the transfer matrix and the Z-transform techniques. The proposed structure is composed of rings connected in a closed loop and is termed a “compound ring resonator circuit.” The interleaver/deinterleaver circuit is designed to meet wavelength division multiplexing (WDM) specifications for two channels of spacing of 50GHz, a channel free spectral range of 100GHz, a crosstalk of 24dB, and a maximum dispersion of ±22psnm over a ±10GHz bandwidth at a wavelength of 1.55μm. Compared with previous circuits of this nature, this circuit possesses a smaller number of rings, a simpler design, does not require apodization, exhibits less dispersion, and offers a higher fabrication tolerance and density.

© 2009 Optical Society of America

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