%0 Journal Article %J Optics Express %D 2013 %T Experimental performance of DWDM quadruple Vernier racetrack resonators %A Boeck, Robert %A Flueckiger, Jonas %A Chrostowski, Lukas %A Jaeger, Nicolas %N 7 %P 9103-9112 %U http://dx.doi.org/10.1364/OE.21.009103 %V 21 %X We demonstrate that one can meet numerous commercial requirements for filters used in dense wavelength-division multiplexing applications using quadruple Vernier racetrack resonators in the silicon-on-insulator platform. Experimental performance shows a ripple of 0.2 dB, an interstitial peak suppression of 39.7 dB, an adjacent channel isolation of 37.2 dB, an express channel isolation of 10.2 dB, and a free spectral range of 37.52 nm. %8 04/2013