@article { boeck2013, title = {Experimental performance of DWDM quadruple Vernier racetrack resonators}, journal = {Optics Express}, volume = {21}, year = {2013}, month = {04/2013}, pages = {9103-9112}, abstract = {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. }, URL = {http://dx.doi.org/10.1364/OE.21.009103}, author = {Robert Boeck and Jonas Flueckiger and Lukas Chrostowski and Nicolas A. F. Jaeger} }