Keysight Technologies, NTT Innovative Devices, and Lumentum demonstrated 448 Gbps data transmission using 224 GBaud PAM4 optical technology at OFC 2025, addressing AI and ML bandwidth demands.
Keysight Technologies, NTT Innovative Devices, and Lumentum showcased a groundbreaking 448 Gbps data transmission at OFC 2025, paving the way for power-efficient 3.2 Tbps interfaces in AI-driven data centers.
Breakthrough in Optical Technology
Keysight Technologies, NTT Innovative Devices, and Lumentum have successfully demonstrated a 448 Gbps data transmission using 224 GBaud PAM4 optical technology at the Optical Fiber Communication Conference (OFC) 2025 in San Diego. According to a joint press release, this achievement marks a significant milestone in addressing the escalating bandwidth demands of artificial intelligence (AI) and machine learning (ML) applications.
Addressing AI Data Center Needs
The collaboration highlights the growing need for high-speed, power-efficient solutions in data centers. The 448 Gbps transmission enables the development of 3.2 Tbps interfaces, which are critical for supporting the massive data flows required by AI and ML workloads. NTT’s spokesperson noted that this technology could reduce energy consumption by up to 30% compared to current solutions.
Industry Implications
Experts at OFC 2025 praised the innovation, stating it could revolutionize data center networking. A report from Light Reading suggests that this technology may be commercially available by late 2026, with early adopters likely to include major cloud providers and AI research facilities.
