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Thread: Laser Power Meter

  1. #1
    Join Date
    Feb 2005
    Location
    Southampton, UK
    Posts
    166

    Default Laser Power Meter

    I am in the market for a power meter, I have seen this on ebay, but it seems filered for 532nm.

    http://cgi.ebay.com/ws/eBayISAPI.dll...164220908&rd=1

    Ideally I would like something with a wider bandwidth, any ideas ?

    Gold

  2. #2
    Join Date
    Jan 2005
    Location
    lancaster Pa. USA
    Posts
    130

    Default

    Seems alot of money for something with so few parts.
    marconi suggested getting any light meter (obviously a better quality one will get better results)
    and add a filter for the color in use, of course getting it calibrated would be nice

    all light meters have varying sensitivities for differnt wavelengths.. so if you dont filter and calibrate, then all your readings would have to be approxamates
    Those who stand for nothing, Will fall for anything.

  3. #3
    Join Date
    Feb 2005
    Location
    Southampton, UK
    Posts
    166

    Default

    Conviencience is everything when testing.

    I want to be able to grab a meter and put it in the beam path and know instantly.

    If it just a coherent lasercheck that will do it for me ?

    Gold

  4. #4
    Join Date
    Jan 2005
    Location
    lancaster Pa. USA
    Posts
    130

    Default

    marconi has one of those 70 buck meters, and a coherent as well(new toy)
    from what he told me the ebay meters are within 5%
    Those who stand for nothing, Will fall for anything.

  5. #5

    Default

    Pardon me, I just woke up... written stuff will be choppy....

    The coherent lasercheck is a great tool.

    The price new is $300ish from either coherent or edmind scientific.

    Basically, you select the wavelength, toggle to measure, and hold the button for 5-6 seconds.

    Take measurements with the beam at a 5-15 degree angle so you dont get back reflections inside the unit.

    I dont have the direct link to all the fun information in sams laser faq on these things, but a simple search through the index should get it.

    Its about as easy and accurate as possible.

  6. #6
    Join Date
    Feb 2005
    Location
    Southampton, UK
    Posts
    166

    Default

    HI Spec

    Got one from Marconi on the way...... One of the vintage ones.

    Gold
    Use APTZ to control your laser www.icode.co.uk/icatcher

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