Scientists from Japanese research institutes broke the Internet transmission rate record at a rate of 319Tbps
In August 2020, the optical fiber link rate developed by British and Japanese researchers broke the record of 179Tbps, and now the record has been broken again and significantly improved.
The National Telecommunications Research Institute of Japan broke the transmission record at a rate of 319 Tbps in the laboratory a few days ago, and it did not affect the rate on an optical cable of 3,000 kilometers.
Of course, this transmission rate may not be popularized in the short term, and the potential impact of new technologies like many technologies may take many years to bring practical applications.
Multi-core packaging is currently a more popular optical fiber transmission technology because the multi-core packaging is compatible with traditional infrastructure and will obtain better mechanical performance.
Japanese researchers also use multi-fiber packaging and use a variety of overlays to protect internal data from interference. If interference occurs, data quality may be affected.
However, the researchers did not simply encapsulate multiple optical fibers directly. They used a special experimental optical fiber to encapsulate the four cores into a standard-sized optical fiber.
The emitter used in the experiment is a comb emitter with 552 channels that can emit at multiple wavelengths and uses an amplifier made of rare earth materials to amplify the signal.
In the end, the researchers obtained an incredible transmission rate, and there were no problems such as deterioration of signal quality under the optical fiber transmission length of about 3,000 kilometers.
However, the researchers did not directly lay the 3,000-kilometer fiber optic cable but coiled it together. The good news is that there is no serious interference problem.
The various materials it uses are expensive and of course not directly used by consumers. The main purpose may be to speed up the data transmission rate of various backbone networks.
As mentioned earlier, the experimental fiber is encapsulated in a standard size fiber by four cores, so it can be easily used to replace the single-core fiber in existing network facilities.
If this technology can be advanced quickly, it may help increase the transmission rate of 5G networks and make breakthrough preparations for future 6G networks.