Wednesday, July 6

What is a petabit?: the new Japanese data transmission record | Digital Trends Spanish


The National Institute of Information and Communication Technologies (NICT) from Japan did a test of data transmission reaching 1.02 petabits, the maximum record until now, surpassing 319 terabit for seconds of the latest feat in 2020.

A petabit is a unit of computer storage information, usually abbreviated pbit or sometimes Pb and equals 1048576 GB.

A good way to understand what a petabit is on earth: it could theoretically transmit up to 10 million channels per second of video at 8K resolution.

To accomplish the feat, the Japanese used a quad core fiber optic, instead of one. Another fact that they have also exceeded is the transmission bandwidth, reaching up to 20 THz thanks to wavelength division multiplexing (WDM) technology.

This four-core optical fiber uses a standard outside diameter of 0.125 mm, which means, as explained by those responsible, that “conventional transceiver hardware can be used. Multicore fibers are believed to be the most likely of the new advanced optical fibers for early commercial adoption.”

#NICT ネットワーク 研究 の ベンジャミン パットナム 主任 研究 員 ら グループ は 、 研究 開発 の 標準 外径 (0.125 mm) 4 コア光 ファイバ において 広帯 域 波長 多重 技術 を 駆使 駆使 し 、 世界 で 初めて 同 で の 毎秒 1 ペタビット ペタビット を容量伝送実験に成功しました。https://t.co/y5T7X7LSU3#光ファイバ

—情報通信研究機構 (@NICT_Publicity) May 19, 2022

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