The sped is very very far beyond today's commercial need but future will be more faster. The first commercial fiber-optic communications system was developed in 1975 and it worked at 45 Mbps.
According to New Scientist report, total capacity between New York and Washington DC, one of the world's busiest routes, is only a few terabits per second, says Tim Strong, of Telegeography Research in Washington. But "traffic has been growing about 50 per cent a year for the last few years", he adds. With bandwidth-hungry video-streaming and social media growing relentlessly, network planners are always searching for ways to expand capacity.
At the Optical Fiber Communications Conference in Los Angeles last month, Dayou Qian, also of NEC, reported a total data-sending rate of 101.7 terabits per second through 165 kilometres of fibre. He did this by squeezing light pulses from 370 separate lasers into the pulse received by the receiver. Each laser emitted its own narrow sliver of the infrared spectrum, and each contained several polarities, phases and amplitudes of light waves to code each packet of information.
At the same conference, Jun Sakaguchi of Japan's National Institute of Information and Communications Technology in Tokyo also reported reaching the 100-terabit benchmark, this time using a different method. Instead of using a fibre with only one light-guiding core, as happens now, Sakaguchi's team developed a fibre with seven. Each core carried 15.6 terabits per second, yielding a total of 109 terabits per second. "We introduced a new dimension, spatial multiplication, to increasing transmission capacity," Sakaguchi says.
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ok so how am I going to do it.
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