"Kazuto Itou,Yuusuke Hayashi,Yusuke Hayashi,Junichi Suzuki,Tomohiro Amemiya,Nobuhiko Nishiyama,Shigehisa Arai","Interlayer Transition Couplers for 3D Optical Circuit","The 6th International Symposium on Photonics and Electronics Convergence",,,,"No. P-23",,2016,Dec.