%0 Journal Article %J Optics Express %D 2015 %T Process calibration method for designing silicon-on-insulator contra-directional grating couplers %A Boeck, Robert %A Caverley, Michael %A Chrostowski, Lukas %A Jaeger, Nicolas %N 8 %U http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-23-8-10573 %V 23 %8 04/2015