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Oki claims first 160Gbps data transmission

Posted: 22 Mar 2006     Print Version  Bookmark and Share

Keywords:Oki Electric  160Gbps  635km  JGN II optical testbed  Japan Gigabit Network 

Oki Electric Industry Co. Ltd has announced that it has succeeded in transmitting 160Gbps data, which is equivalent to transmitting four movies in a single second over a distance of 635km.

The company used an optical testbed provided by Japan Gigabit Network II (JGN II) to prove the results for the project, and succeeded in transmitting what it touts as the world's first 160Gbps data, that included high-vision video.

The experiment using JGN II testbed took place in December 2005. At this field trial, Oki used a 254km transmission route with two turn backs to achieve the world's first transmission of signal evaluation data simultaneous with high-vision video. The distance was increased by changing the number of turn backs, and as a result, succeeded in a total of 635km with five turn backs, the longest yet achieved with the JGN II testbed.

Oki's optical 160Gbps transceiver was exhibited at the International Optoelectronics Exhibition '04 in an experimental 120km transmission over optical fiber, which received great reviews as a stable and practical apparatus. The company added that it has also succeeded in a 640km transmission using an 80km re-circulating loop. To gain results for a more practical use for 635km transmission, Oki evaluated the transmission paths on actual environment with changing temperatures, and also confirmed error free data transmission.

"The 160Gbps optical transceiver creates optical data signals using time division multiplexing with individual modulation. Oki has been committed to this individual modulation and has developed the optical time division multiplexing module. The module used in this experiment reduces optical coupling loss by half, is one third the previous size, and offers increased usability," said Harushige Sugimoto, senior vice president and CTO of Oki.

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