Abstract

In this Letter, the amplitude and group delay characteristics of coupled resonator optical waveguides apodized through the longitudinal offset technique are presented. The devices have been fabricated in silicon-on-insulator technology employing deep ultraviolet lithography. The structures analyzed consisted of three racetracks resonators uniform (nonapodized) and apodized with the aforementioned technique, showing a delay of $5\pm 3\mathrm{ps}$ and $4\pm 0.5\mathrm{ps}$ over 1.6 and $1.4\mathrm{nm}$ bandwidths, respectively.

© 2011 Optical Society of America

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