*NEWS*OKI CLAIMS 1ST 160gbps TRANSMISSION

[Anonymous]

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.

[Author]

March 29, 2006 at 11:51 AM