OKI CLAIMS 1ST 160gbps DATA TRANMISSION

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Date: Wednesday March 29, 2006 11:49:00 am
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    Oki claims first 160Gbps data transmission trial over 635km
    Mar 2006
    Oki Electric Industry Co. Ltd 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.
    According to the press release, Oki 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 recirculating 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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