The National Institute of Information and Communications Technology (NICT, President: Hideyuki Tokuda, Ph.D.) and Furukawa Electric Co., Ltd. (Furukawa Electric, President: Keiichi Kobayashi) jointly report a record SDM transmission experiment using multi-core fiber amplifier. Furukawa Electric developed a 19-core Erbium-doped-fiber amplifier utilizing cladding-pumping technology in order to share electrical power between the large number of…
Circuit Tech Resolves Issues With High-Frequency Piezoelectric Resonators
In collaboration with the National Institute of Information and Communications Technology (NICT), Associate Professor Hiroyuki Ito and Professor Kazuya Masu, et al., of the Tokyo Institute of Technology, developed a new algorithm and circuit technology allowing high-frequency piezoelectric resonators to be used for phase locked loops (PLL). It was confirmed that these operate with low…