Yuchen SHAO, Xiuyou HAN, Xiaonan HAN, Zhili LU, Zhenlin WU, Jie TENG, Jinyan WANG, Geert MORTHIER, Mingshan ZHAO. Optimal Design of 850 nm 2×2 Multimode Interference Polymer Waveguide Coupler by Imprint Technique[J]. Photonic Sensors, 2016, 6(3): 234