
Masahito Tomizawa, CTO of NTT Innovative Devices, speaks to reporters in Tokyo on Oct. 6 about the company’s vision for more energy-efficient data networks. (Photos courtesy of NTT)
TSUBASA SURUGA
October 7, 2025 13:18 JST
TOKYO — Japan’s NTT says it will begin producing a key device for its next-generation optical communications network in 2026, teaming up with U.S. chipmaker Broadcom and other semiconductor players to tackle the soaring energy demand of AI data centers.