TelecommunicationJapan telecom aims to commercialize tech that slashes power consumption in data centersNTT looks to have its Innovative Optical and Wireless Network technology adopted in data centers. (Photo by Satoko Kawasaki)KOSUKE SHIMIZUJune 9, 2026 01:38 JSTTOKYO -- Japanese telecom giant NTT will establish a multinational investment fund worth about $500 million to further the advancement of the group's next-generation optical communications technology, Nikkei has learned.