1. High-Frequency Electronics Technology Center, Furukawa Electric Co., Ltd.,Yokohama-shi,Kanagawa Pref.,Japan,220-0073
2. Furukawa Electric Co., Ltd.,Photonics-Electronics Fusion Technology Department,Ichihara-shi,Chiba Pref.,Japan,290-8555
3. Furukawa Network Solutions Corporation,Network R&D Division,Hiratsuka-shi,Kanagawa Pref.,Japan,254-0016