Chinese Firms Complete 1.2Tb/s Hollow-Core Fiber Trial, Reaching 51.3Tb/s Over 128 Miles
Updated
Updated · Interesting Engineering · Jun 27
Chinese Firms Complete 1.2Tb/s Hollow-Core Fiber Trial, Reaching 51.3Tb/s Over 128 Miles
1 articles · Updated · Interesting Engineering · Jun 27
Summary
China Telecom, Yangtze Optical Fibre and Dekoli said their field test delivered 1.2Tb/s per wavelength and 51.3Tb/s total capacity over about 128 miles without signal repeaters.
The trial is billed as the first real-world demonstration of stable high-power transmission on a hollow-core fiber network, a key hurdle for moving the technology beyond lab settings.
Hollow-core fiber sends light through air rather than solid glass, cutting latency and raising capacity for backbone links and large data centers.
An adaptive per-wavelength rate-control system and flexible power allocation helped optimize mixed data rates, while a new amplifier design reached up to 33.5 dBm output with safety shutdown and anomaly-detection features.
The result sets a new benchmark for long-distance, high-capacity optical transmission and strengthens the case for hollow-core fiber in next-generation communications infrastructure.
As China masters light-speed data, is the West losing the race for the internet's future?
Will this breakthrough render today’s global internet infrastructure obsolete?
Beyond record speeds, what is the true cost of rewiring the world with this technology?
New World Record in Hollow-Core Fiber Transmission: China’s Breakthrough and the Global Battle for Next-Gen Optical Networks
Overview
A collaborative team from China Telecom, YOFC, and Dekoli has set a new world record in optical transmission by successfully achieving high-power transmission in a live-network hollow-core fiber (HCF) environment. This marks the first time such a feat has been accomplished, representing a major leap forward in the field. The team rigorously validated HCF’s high-speed capabilities in real-world conditions, setting a new benchmark for practical application. Their success was made possible with strong support from national facilities, highlighting the importance of collaboration and advanced infrastructure in driving innovation in optical communications.