Chinese researchers have set a new world record for data transmission speed, reaching 3.2 petabits per second over a 24-core fiber optic cable. This performance represents a 28% increase compared to the previous record of 2.5 petabits per second achieved by the same team earlier this year.
The technology utilizes spatial multiplexing combined with data transmission across S, C, and L optical bands. To achieve this, engineers addressed challenges related to inter-channel interference and the synchronization of technical requirements across different wavelength ranges.
According to the report, the test was conducted in real-time using equipment that meets commercial standards. This distinguishes the achievement from purely academic demonstrations that rely on specialized, non-commercial hardware and experimental signal processing methods.
The capacity demonstrated is theoretically sufficient to transmit the data of over 20,000 4K resolution movies in one second. Furthermore, the bandwidth could support simultaneous gigabit internet connections for approximately 3.2 million households.
