Author Affiliations

Shoichiro Yasui,^1,2,* Masaya Hiraishi,^1,4 Atsushi Ishizawa,¹ Hiroo Omi,³ Tomohiro Inaba,¹ Xuejun Xu,¹ Reina Kaji,² Satoru Adachi,² and Takehiko Tawara⁵

¹NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan

²Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan

³Faculty of Science and Engineering, Yamato University, Suita, Osaka 564-0082, Japan

⁴The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Physics, University of Otago, Dunedin 9016, New Zealand

⁵College of Engineering, Nihon University, Koriyama, Fukushima 963-8642, Japan

^*Corresponding author: syou157next@eis.hokudai.ac.jp