%0 Journal Article %J Optics Letters %D 2016 %T Broadband 2??2 adiabatic 3??dB coupler using silicon-on-insulator sub-wavelength grating waveguides %A Yun, Han %A Wang, Yun %A Zhang, Fan %A Lu, Zeqin %A Lin, Stephen %A Chrostowski, Lukas %A Jaeger, Nicolas %N 13 %P 3041-3044 %U https://www.osapublishing.org/ol/abstract.cfm?uri=ol-41-13-3041 %V 41 %8 06/2016