Senior Technology Correspondent
Ericsson and McGill University today unveiled a silicon photonic chip that enables high-capacity and energy-efficient optical interconnections for 6G radio access networks (RAN). The photonic system-on-chip (SoC) controls carrier laser polarization changes in real-time, enabling cost-effective co-packaged optics (CPO) transceivers in radio communication systems. This innovation addresses the critical need for high-bandwidth, low-latency connectivity between 6G base stations and core networks, supporting data rates up to 1 Tb/s per optical link.
The silicon photonic chip integrates multiple optical components, including modulators, photodetectors, and polarization controllers, on a single silicon substrate, reducing power consumption by 50% compared to traditional discrete optical systems. “This breakthrough paves the way for the next generation of wireless networks,” said Fabio Cavaliere, Ericsson’s Head of Radio Access Networks. “Silicon photonics will be essential for delivering the ultra-high bandwidth and low latency required for 6G applications, from immersive extended reality to autonomous systems.”
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