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Thread: 445nm driver

  1. #1
    Join Date
    Dec 2007
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    Default 445nm driver

    Just seen these on ebay.

    http://cgi.ebay.com/VUEMETRIX-LASER-...item439f89955a

    Do think they would be alright for driving either a single or a pair of 445nm diodes??
    Has anyone used them before??
    I can't wait until the end of July for the flexmods.

    Cheers
    Rich

  2. #2
    Join Date
    Dec 2007
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    Default

    Not sure...
    Only one way to find out

    They looks like the drivers for the 5-10mW 488nm direct doubled lasers heads.
    Unsure of the pump diode current. But can't imagine it being ~3A (assuming 2x 1.5A drive for each 445nm diode)
    My old direct doubled Coherent OPSL 200mW 488nm needed 5A on the pump to do 200mW. These will drive heads <20mW.

    Edit: You'd also probably need to have a TEC + some sort of photodiode feedback in there as well for the driver to correctly function, otherwise it may just pull the diode current higher and higher to its internal limit.

    I think there are better and cheaper options out there.
    But prove me wrong!
    - There is no such word as "can't" -
    - 60% of the time it works every time -

  3. #3
    Join Date
    Dec 2007
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    Default

    Thanks for the input Dan.

    I'd love to order one but its going to take a while to ship to me. If I could get it sooner I would give it ago. Maybe I'll just hold fire for the flexmods.

    I do have enough components with me to build a stanham. However, after the issues Things had I may pass on it unless I can find a photo of the driver on stripboard front and back.

    Cheers
    Rich

  4. #4
    Join Date
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    Default

    How about Robin Bowden's Die4Drive?
    http://www.die4laser.com/dvd-rec/Die4Drive.htm
    I've used them for a pair of reds in the past, and they've been ace.

    - There is no such word as "can't" -
    - 60% of the time it works every time -

  5. #5
    Join Date
    Dec 2007
    Location
    NorCal / Western Caribbean
    Posts
    710

    Default

    I sent him a PM (UK-Laser) a while ago but never go a reply and I cant see anywhere on the website to order on line.

    Cheers
    Rich

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