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Sony, university make blue-violet laser for 1TB Blu-ray disc

updated 12:05 pm EDT, Fri July 23, 2010

Sony, university create tech for 1TB Blu-rays

Researchers at Sony together with those at Japan's Tohoku University said they have developed a blue-violet laser that can create 1TB Blu-ray discs. The ultrafast pulsed semiconductor laser has a laser wavelength of 405 nanometers and can generate optical pulses just the picoseconds in duration. Moreover, the new laser doesn't require a large light source and a specialist technician to operate, as required in the past with similar technology.

Sony says it has tested the new storage, and will continue to develop it to create next-generation disk storage devices. Currently, Blu-ray drives hold 25GB of data, with dual-layer versions capable of storing 50GB. Sharp and TDK recently put out new 100GB BDXL discs, though these simply use four regular layers rather than higher density on existing layers.

There is no indication of when the new discs and writers will be commercially available, or what they will initially cost. [via Examiner]

by MacNN Staff



  1. IxOsX

    Joined: Dec 1969




  1. byRyan

    Joined: Dec 1969


    maybe this

    Maybe this is what steve Jobs has been holding out for. We are going right over Blu-ray and go straight to Blu-Violet Ray!

    Hopefully the licensing on this won't be a "bag of hurt" because its going to be a tough sell convincing consumers that they don't want 1 TB of removable media!

  1. AzTech

    Joined: Dec 1969


    It's still optical technology!

    All burnable optical disks are a big FAIL! Storage on any optical disk, other than commercially pressed, are not reliable and should not be used for anything but a one time data transfer from computer to computer. We don't need 1TB, we need bullet proof data storage, not the bull s*** they've been pushing for years. In this case Steve is correct. Optical is not viable, because it is not reliable! Let's all push for non-mechanical data storage breakthroughs, anything else is so yesterday...

  1. Herod

    Joined: Dec 1969


    wheres my popcorn

    i cant wait for the blu-ray vs purple-ray war.

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