%0 Conference Paper %B OFC/NFOEC %D 2012 %T Add-drop filters in silicon grating-assisted asymmetric couplers %A Shi, Wei %A Wang, Xu %A Yun, Han %A Zhang, Wen %A Chrostowski, Lukas %A Jaeger, Nicolas %C Los Angeles, US %P OTh3D.3 %8 04/03/2012