Author：Yu He, Yong Zhang, Xiaodong Wang, Boyu Liu, Xinhong Jiang, Ciyuan Qiu, Yikai Su, and Richard Soref
Abstract：A compact polarization splitter-rotator is experimentally demonstrated by using a subwavelength grating waveguide based directional coupler. Over 13 dB extinction ratios for both polarizations are achieved. Large tolerance (50 nm) to waveguide-width variation is also verified.
Publishing source：Proc. OFC
