%0 Conference Paper %B SPIE Photonics Europe %D 2012 %T Integrated silicon contradirectional couplers: modeling and experiment %A Shi, Wei %A Wang, Xu %A Yun, Han %A Zhang, Wen %A Jaeger, Nicolas %A Chrostowski, Lukas %C Brussels, Belgium %P 8424-82 %8 04/2012