A Japanese team has created a fiber to 7 cores capable of delivering 15.6 Tbit / s per core. In the end we are left with a total of 109 Tbit / s. Another group from NEC combined the data sent by 370 lasers. These two studies are independent of each other, but reach the same goal, to move more than 100 Tbit / s using an optical fiber.
The first method is the simpler of the two on paper. Arriving to combine cores and eliminating the interference, we get a cable that is expensive to produce for the moment, but beyond what we have seen so far. Scientists at NEC have cons by a more complex approach. They say they were first allocated a piece of the infrared spectrum to each of the 370 data stream to combine into one laser capable of carrying 101.7 Tbit / s.
Each stream had its own polarity and amplitude so as not to disturb others. It is an experience similar to that on paper done in 2009 by researchers at Alcatel Lucent have merged several lasers on the same cable. In this case the Japanese researchers have combined multiple streams on a single laser (see "Record: 100 petabit / s.
km optical fiber"). The 100 Tbps on a fiber optics are a symbolic level which was thought impassable not so long and on a purely practical technology marketed today do not approaching these speeds. Nevertheless, the path from laboratory to plant is still long. It will overcome many obstacles such as the design of transmitter and receiver as well as creating proper storage systems that can support such speeds.
In short, there is still time before we can download the equivalent of 6 Blu-ray 20 GB movie in one second. 
The first method is the simpler of the two on paper. Arriving to combine cores and eliminating the interference, we get a cable that is expensive to produce for the moment, but beyond what we have seen so far. Scientists at NEC have cons by a more complex approach. They say they were first allocated a piece of the infrared spectrum to each of the 370 data stream to combine into one laser capable of carrying 101.7 Tbit / s.
Each stream had its own polarity and amplitude so as not to disturb others. It is an experience similar to that on paper done in 2009 by researchers at Alcatel Lucent have merged several lasers on the same cable. In this case the Japanese researchers have combined multiple streams on a single laser (see "Record: 100 petabit / s.
km optical fiber"). The 100 Tbps on a fiber optics are a symbolic level which was thought impassable not so long and on a purely practical technology marketed today do not approaching these speeds. Nevertheless, the path from laboratory to plant is still long. It will overcome many obstacles such as the design of transmitter and receiver as well as creating proper storage systems that can support such speeds.
In short, there is still time before we can download the equivalent of 6 Blu-ray 20 GB movie in one second.
- Force10 Aims 100-Gbit Ethernet Switch At Clouds (27/04/2011)
- Super Fast: Teams Develop Optical Fiber Cables That Carry Data Faster Than 100 Terabits A Second (02/05/2011)
- Juniper flat-packs data centre networking (24/02/2011)
- Vertu Constellation Quest goes carbon fibre (02/05/2011)
- New Fiber Optics Milestone: 100 Terabits/Sec (02/05/2011)
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