@article { eid2016fsr, title = {FSR-free silicon-on-insulator microring resonator based filter with bent contra-directional couplers}, journal = {Optics Express}, volume = {24}, number = {25}, year = {2016}, pages = {29009--29021}, publisher = {Optical Society of America}, type = {article}, author = { Eid, Nourhan and Boeck, Robert and Jayatilleka, Hasitha and Chrostowski, Lukas and Shi, Wei and Jaeger, Nicolas AF } }