%0 Journal Article %J Optics Letters %D 2013 %T Coupler-apodized Bragg-grating add-drop filter %A , Wei Shi %A Yun, Han %A Lin, Charlie %A , Jonas Flueckiger %A Jaeger, Nicolas %A Chrostowski, Lukas %N 16 %P 3068?3070 %U http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-38-16-3068 %V 38 %X We demonstrate an apodization technique using tapered coupler gaps in grating-assisted asymmetric couplers, which circumvents the need for tapered waveguide perturbations and enables a higher tolerance to fabrication errors. A high sidelobe suppression ratio of 30 dB has been obtained on the submicrometer silicon-on-insulator platform using a CMOS-compatible photonics process with 193 nm lithography. %8 08/2013