*NEWS*OKI CLAIMS 1ST 160gbps TRANSMISSION

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*NEWS*OKI CLAIMS 1ST 160gbps TRANSMISSION

 user 2006-03-29 at 11:51:00 am Views: 53
  • #15179

    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.