*Hiroyuki Ishii¹ (1. Furukawa Electric Co., Ltd. (Japan))

*Yuhki Itoh^1,2, Naoya Kono ^1,2, Kosuke Fujii ^1,2, Hiroyuki Yoshinaga ^1,2, Naoki Fujiwara ^1,2, Makoto Ogasawara ¹, Rei Tanaka ¹, Hideki Yagi ¹, Masaki Yanagisawa ¹, Masahiro Yoshida ², Takuya Inoue ², Menaka De Zoysa ², Kenji Ishizaki ², Susumu Noda ² (1. Sumitomo Electric Industries (Japan), 2. Kyoto Univ. (Japan))

*Suguru Yamaoka¹, Nikolaos-Panteleimon Diamantopoulos¹, Hidetaka Nishi¹, Takuro Fujii¹, Koji Takeda¹, Tatsurou Hiraki¹, Shigeru Kanazawa², Takaaki Kakitsuka¹, Shinji Matsuo¹ (1. NTT Device Technology Labs (Japan), 2. NTT Device Innovation Center (Japan))

*Kazuki Suga¹, Kouji Nakahara¹, Shigenori Hayakawa¹, Masatoshi Arasawa¹, Ryu Washino¹, Takeshi Kitatani¹, Masatoshi Mitaki¹, Hironori Sakamoto¹, Shigehisa Tanaka¹ (1. Lumentum Japan, Inc. (Japan))

*Jan Gregor Gatzmann¹, Martin Moehrle¹, Ute Troppenz¹, Ariane Sigmund¹, Martin Schell¹ (1. Fraunhofer Heinrich-Hertz-Instit. (Germany))

*Ying XUE¹, Jie Li¹, Liying Lin¹, Zengshan Xing¹, Kam Sing Wong¹, Kei May Lau¹ (1. HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (Hong Kong))