@inproceedings { Weis_OFC2012, title = {Add-drop filters in silicon grating-assisted asymmetric couplers }, journal = {OFC/NFOEC}, year = {2012}, month = {04/03/2012}, pages = {OTh3D.3 }, address = {Los Angeles, US}, author = {Wei Shi and Xu Wang and Han Yun and Wen Zhang and Lukas Chrostowski and Nicolas Jaeger} }