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Fibre speeds of 1.4Tb/s achieved by BT, Alcatel-Lucent

Posted on 23 January 2014

An internet connection with the ‘fastest ever’ broadband capable of transmitting 44 high-definition movies in just one second at 1.4Tb/s has been successfully achieved during a test in London.

Speed test conducted jointly by British Telecom (BT) and Alcatel-Lucent, a French networking equipment company, has raised hopes of more efficient data transfer via existing infrastructure avoiding any kind of costly upgrades.

Alcatel-Lucent and BT said that during their joint test broadband speed of around 1.4 terabits per second were achieved which is fast enough to send 44 uncompressed HD films per second.

The test was conducted over an existing 410km fibre link between the BT Tower in London and Ipswich.

Previously such faster internet speeds have only been measured in labs, but this is the first time that such a fast internet connection has been achieved using “real world” conditions.

Chief executive of the broadband analyst firm Point Topic, Oliver Johnson, said “BT and Alcatel-Lucent are making more from what they’ve got.”

“It allows them to increase their capacity without having to spend much more money.”

Researchers used a new “flexigrid” infrastructure, which created an “alien super channel” made up of seven 200 gigabits per second (Gbps) channels, to vary the gaps between transmission channels. Increasing the channels’ density resulted in a 42.5 percent increase in the efficiency of data transmission compared with current standard networks.

Kevin Drury, optical marketing leader at Alcatel-Lucent, told BBC news that the test was aimed at reducing space between lanes on a busy highway, enabling more lanes of traffic to flow through the same path. He said that while wide lines can encompass heavy data transfers such as streaming video, narrow lanes would be assigned for low-data transfers such as standard web page.

Megha
Megha

5 thoughts on “Fibre speeds of 1.4Tb/s achieved by BT, Alcatel-Lucent”

  1. Ants says:
    24 January 2014 at 12:31

    This is completely wrong – 1.4 Terabits is 175 GB – and even a compressed Full HD film is going to be around 10 GB minimum, meaning you could transfer about 17 movies a second. Uncompressed it would be 25GB to fit on a single sided BluRay, and you’d be able to send 7 movies a second.

    Trying to fit 44 full HD movies into 175 GB is absolutely impossible. You could just manage 44 DVD 480p movies in that space, with minor compression on them.

    Reply
    1. Curowados says:
      24 January 2014 at 17:35

      I think that they clearly said: “High Definition” or “HD”, not “Full High Definition” or “FHD”

      Reply
      1. Ants says:
        24 January 2014 at 20:31

        regardless of that a 720p feed without compression would not fit into 3.9 GB of space either – otherwise they would deliver HD 720p movies on standard DVDs.

        Reply
        1. Curowados says:
          25 January 2014 at 03:25

          Hmm, well, keep the good work up!
          But you know it’s unbelievable!
          Even if it’s 7 movies a second that’s really fast, I download 480p short videos in a minute or more.
          HD and FHD movies take like hours.

          Reply
    2. Anthony Vance says:
      12 February 2014 at 16:53

      To let you know, 1 terabyte is 1024 GBs. So 1.4 TBs is 1433 GBs, So, I think you guys should look into from the beginning of storage size or speed. (Use google if you must) xD

      Reply

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