Experimental demonstration of ultra-high precision optical frequency transfer via 240-km-long telecommunications fiber - Optical repeater cascade transfer using planar lightwave circuit (PLC) -
(WorldNews Japan)

Tweet (Press Release) March 18, 2020 Nippon Telegraph and Telephone Corporation The University of Tokyo Nippon Telegraph and Telephone East Corporation RIKEN Japan Science and Technology Agency (JST) Experimental demonstration of ultra-high precision optical frequency transfer via 240-km-long telecommunications fiber - Optical repeater cascade transfer using planar lightwave circuit (PLC) - Nippon Telegraph and Telephone Corporation (NTT, H.Q.: Chiyoda-ku, Tokyo, President and CEO: Jun Sawada), Professor Hidetoshi Katori with the Graduate School of Engineering, The University of Tokyo (UTokyo, H.Q.: Bunkyo-ku, Tokyo, President: Makoto Gonokami) (concurrently Team Leader at the RIKEN Center...