Author Affiliations

Muneyuki Adachi,¹ Xiaojun Fang,² Naoya Nakagawa,² Masakatsu Hirasawa,² Akira Suguro,³ Naoki Karasawa,⁴ Soichi Kobayashi,⁴ Mitsuo Kasamatsu,⁵ Ryuji Morita,^6,* and Mikio Yamashita⁶

¹Department of Applied Physics, Hokkaido University, and Laser Research Laboratory, NIDEK Co., Ltd., 34-14, Maehama, Hiroishi, Gamagori, Aichi, 443-0038 Japan

²Department of Applied Physics, Hokkaido University, and Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation, Kita-13, Nishi-8, Sapporo, 060-8628 Japan

³Technical Research Laboratory, CITIZEN WATCH Co., Ltd., 840, Shimotomi, Tokorozawa, Saitama, 359-8511 Japan

⁴Department of Applied Photonics System Technology, Chitose Institute of Science and Technology, 758-65, Bibi, Chitose, Hokkaido, 066-8655, Japan

⁵Laser Research Laboratory, NIDEK Co., Ltd., 34-14, Maehama, Hiroishi, Gamagori, Aichi, 443-0038 Japan

⁶Department of Applied Physics, Hokkaido University, and Core Research for Evolutional Science and Technology, Japan Science and Technology Corporation, Kita-13, Nishi-8, Sapporo, 060-8628 Japan

^*Corresponding author: morita@eng.hokudai.ac.jp