About TAKADA K
About Nippon Telegraph and Telephone Corp., Ibaraki-ken, JPN
About SHIMIZU M
About Nippon Telegraph and Telephone Corp., Ibaraki-ken, JPN
About YAMADA M
About Nippon Telegraph and Telephone Corp., Ibaraki-ken, JPN
About HARIGUCHI M
About Nippon Telegraph and Telephone Corp., Ibaraki-ken, JPN
About HIMENO A
About Nippon Telegraph and Telephone Corp., Tokyo, JPN
About YUKIMATSU K
About Nippon Telegraph and Telephone Corp., Tokyo, JPN
About Electronics Letters
About superradiance
About Infrared spectroscopy and spectrometers
About Er3+
About 高出力
About 超蛍光
About ファイバ
About 高感度
About コヒーレンス
About OTDR