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Revolutionary Connection Transmits Data at Unprecedented Speeds, Breaking Previous World Records and Potentially Transforming the Future of Global Internet.
A new world record for internet speed has been set by researchers in Japan, achieving a transmission of over 127,000 gigabytes per second over a distance of 1,802 kilometers.
The achievement, announced in July 2025 by the National Institute of Japan for Information and Communication Technology (NICT), surpasses the previous world record of 50,250 GB/s set in 2024, more than doubling the former mark.
This accomplishment was made possible by the development of a new type of fiber optic cable, resulting from a collaboration between the Photonics Networks Laboratory of NICT and Sumitomo Electric, and was presented by the international team led by Japanese scientists.
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Average Internet Speed in Brazil and Comparison with Japan
For comparison, the average speed of broadband internet in Brazil, according to the Minha Conexão ranking from July 2025, is 236 megabits per second (Mb/s).
This means that the new Japanese technology is approximately 4.25 million times faster than the Brazilian average, highlighting an impressive contrast between the connectivity levels of the two countries.
Reaching 1.02 petabits per second — equivalent to 1,020,000 gigabits per second or 127,500 gigabytes per second — this innovative transmission would be capable of downloading the Internet Archive, a repository with over 946 billion web pages, in less than four minutes, considering the volume of data stored in July 2025.
The breakthrough was made possible due to the use of next-generation fiber optics, which integrates 19 transmission channels in a single wire with just 0.127 millimeters in diameter, the same thickness as a traditional fiber cable with only one channel.
Innovation in Fiber Optics and Data Transmission
The differentiator of the new fiber lies in its capacity for simultaneous data transmission and its efficiency over long distances.
During tests, the research team was able to transmit data the equivalent of 21 times between Salvador and São Paulo, totaling 1,802 kilometers, with no significant loss of signal or reduction in speed.
According to NICT, the technology eliminates traditional light fluctuations present in conventional fiber optics, which often impair performance and can cause data loss.
Functioning of Fiber Optics and Technological Advancement
Fiber optic technology, the backbone of the world’s main data transmission systems, uses flexible and transparent filaments to conduct light signals encoded with digital information.
Each filament has a thickness similar to that of a human hair, yet is capable of transporting a large volume of data at very high speeds.
The Japanese innovation successfully incorporated 19 of these filaments inside a single cable, maintaining the overall diameter identical to that of traditional fiber optics, optimizing the use of existing infrastructure.
The test involved sending data through multiple channels simultaneously using advanced multiplexing technologies (a technique that allows different information streams to be sent over a single physical line).
This ensured the transmission of data at unprecedented rates, making the structure capable of supporting the growing demands of applications that consume large bandwidths, such as artificial intelligence, ultra-high-definition video streaming, and global scale cloud storage.
Future Impacts of Ultra-Fast Fiber Optics
According to industry experts, the arrival of ultra-fast fiber optics has the potential to revolutionize global data traffic, making near-instantaneous information transmission viable for sectors such as scientific research, medicine, communication, education, and the entertainment industry.
The innovation could benefit everything from smart city systems and hospitals to large technology companies that rely on data centers and global networks for their operations.
An additional relevant point is that the implementation of the new fiber optics can be done using the existing infrastructure, as the diameter of the new cable is identical to that of conventional fiber.
This means that, should the technology become commercially viable, there would be no need to replace underground ducts or carry out large adaptation works, facilitating its large-scale adoption by operators and internet providers.
As of July 2025, the Japanese record has not yet been certified by independent international organizations, but it is already attracting interest from governments, companies, and researchers worldwide.
The expectation is that as global demand for speed and data volume continues to grow — driven by generative artificial intelligence, augmented reality applications, connected devices, and industrial automation — technologies like those developed by NICT will be crucial to ensuring the efficiency and stability of future networks.
Challenges and Reality of the Internet in Brazil
While Japan invests massively in research and development of advanced infrastructure, Brazil still faces structural challenges, such as access inequality, limitations in remote regions, and high costs of expanding the fiber optic network.
According to data from July 2025, less than 70% of Brazilian households have access to fiber optic internet, with most access concentrated in large urban centers.
This contrast highlights the need for public policies aimed at innovation, universal access, and promoting research projects in partnership with universities and businesses.
Moreover, experts point out that the adoption of next-generation data transmission technologies is essential to integrate Brazil into the global digital landscape, making the country more competitive in sectors such as e-commerce, digital content production, and industry 4.0.
At the pace at which advancements like those in Japan occur, to what extent can Brazil overcome its own limitations and keep up with the global connectivity revolution?
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