The National Institute of Information and Communications Technology (NICT) has succeeded in transmitting 378.9 terabits of optical data per second, breaking the world record, and a single optical fiber can transmit 11 times the amount of data in Japan
An international research team led by the Photonic Network Laboratory of
Achieving world records for transmission capacity and frequency band using existing optical fiber transmission | 2024 | NICT-National Institute of Information and Communications Technology
https://www.nict.go.jp/press/2024/03/29-1.html
Communication using optical fiber uses a wavelength band of 1000nm to 1675nm, called the optical communication wavelength band . Optical communication wavelength bands are subdivided into T band, O band, E band, S band, C band, L band, and U band.General optical communication uses C band, and some optical communication uses C band. and L band are used.
The research team is developing an optical fiber transmission system that can utilize wavelength bands other than the C-band and L-band to speed up communication using optical fibers, and plans to expand the C-band, L-band, and S-band by March 2022. The transmission system used succeeded in transmitting 244.3 terabits per second. In October 2023, transmission at 301 terabits per second was successfully achieved using the E band.
In this research, we developed a bismuth-doped fiber optical amplifier for O-band, a U-band Raman amplifier, and an optical spectrum shaper for O-band and U-band, making it possible to use O-band and U-band as well. Successful transmission at 378.9 terabits per second.
The Ministry of Internal Affairs and Communications reports that the estimated total download traffic for Japan's broadband internet services in November 2023 is 34.5 terabits per second. Based on this information, the research team appealed, ``The 378.9 terabits per second (achieved this time) is the capacity to transmit approximately 11 times the data of domestic broadband traffic as of November 2023 over a single fiber.'' I am.
The research team says that they will continue to expand the usable wavelength band with the aim of increasing the capacity of optical networks.
Related Posts:
in Web Service, Hardware, Science, Posted by log1o_hf