The demand of high speed data transmission over internet is getting higher, with more and more video-on-demand service. Oki has announced the world’s first to achieve all optically regenerated transmission, which enables unlimited transmission of 160Gbps optical signals with single wavelength. OKI used an optical test-bed provided by the National Institute of Information and Communications Technology (NICT)’s Japan Gigabit Network II (JGN II)(*1), the result proves the archivement of transmitting data at 160Gbps data, a speed equivalent to transmitting four movies, approximately 8 hours of data, in a single second. This amount of data at this speed can be sent over distances greater than the length of Japan, which is about 3,000km, and in fact to the other side of the planet, which is about 20,000km. OKI developed an all-optical 3R Regenerator, which uses a specialized optical-repeater technology with functions for re-amplification, re-shaping to remove optical signal wave distortion, and re-timing to avoid timing jitter accumulation. With these advances, in theory, it is possible to achieve signal processing speeds of over 200Gbps.


The 160Gbps data transmission uses an ultra high-speed optical communication technology that is expected to be commercialized in 2010 or after. OKI will analyze the findings from the field trial and develop a commercial-level 160Gbps optical 3R Regenerator.

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