A Chinese team sets a 3.2Pb/s world record for real-time optical-fiber transmission, 1 with speed increased by nearly 30%

AT A GLANCE

The Chinese team completed a 3.2Pb/s real-time bidirectional transmission trial using multi-core fiber, reportedly setting a world record.

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PANews October 27 News reports that, according to Science and Technology Daily, the National Key Laboratory of Optical Communication Technologies and Networks of China Information and Communication Technology Group, together with Peng Cheng Laboratory and FiberHome Fujikura Optics Technology Co., Ltd., completed 3.2Pb/s a real-time bidirectional transmission test over multicore optical fiber, setting a world record for single-fiber bidirectional real-time optical transmission capacity. This rate exceeds the 2.5 Pb/s record set by the same team earlier this year, representing an increase of nearly 30%equivalent to 1 seconds to download 20000 more than 4K films, or enough for 3200000 households to simultaneously use gigabit broadband. The test used 10.3 kilometers of 24-core multicore optical fiber, combined with S+C+L three-band multiplexing and space-division multiplexing technologies. The capacity limit of conventional commercial single-core G.652 optical fiber in the C+L bands is approximately 100Tb/s and the total single-fiber capacity of this system is 32 times that. The findings have been submitted to the Journal of Lightwave Techno...

Source: https://www.panewslab.com/zh/articles/01a17cbe-5837-75c6-92c2-510c5d34730c

Key points

China Information and Communication Technologies Group’s State Key Laboratory of Optical Communication Technology and Networks, together with Pengcheng Laboratory and FiberHome Fujikura Optical Communication Co., Ltd., completed 3. 2Pb/s a real-time bidirectional transmission test using multicore optical fiber.
The report claims that the test set a world record for real-time bidirectional optical transmission capacity over a single fiber.
This rate exceeds the same team’s previous 2.5 Pb/s record, an increase of nearly 30%。
The trial used a 10.3-kilometer-long 24 multi-core fiber, combined with S+C+L three-band multiplexing and space-division multiplexing technologies.
The report noted that the capacity limit of a traditional C+L-band commercial single-core G.652 fiber is approximately 100Tb/s, while the system’s total capacity per fiber is 32 times that figure.

AI-assisted interpretation

The following is analysis, separate from reported facts. Verify important claims independently.

This experiment combined multi-core fiber, multiple wavelength bands, and space-division multiplexing technologies to achieve extremely high-capacity bidirectional data transmission in a single fiber.

Why it matters to readers

If subsequent tests can reproduce the results and the technology enters commercial use, it could increase the transmission capacity of optical communications networks; current evidence shows only laboratory test results.

Pb/s It is measured in petabits per second, far exceeding common home broadband speeds; however, laboratory rates do not mean that ordinary users will have immediate access to them.

Risks and unknowns

The original content was truncated at the paper title and did not provide complete paper information.
The evidence did not provide independent verification or the full paper text.
The evidence does not state whether the technology has entered commercial testing and deployment by telecommunications operators or data centers.
The “world record” claim comes from the report and requires verification against further publicly available materials.

A Chinese team sets a 3.2Pb/s world record for real-time optical-fiber transmission, 1 with speed increased by nearly 30%

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