Results 1 to 5 of 5

Thread: 5W or higher 520 diode laser

  1. #1
    Join Date
    Jan 2011
    Location
    Boston
    Posts
    255

    Default 5W or higher 520 diode laser

    The power output of one of my 5 watt CNI 532 DPSS modules is fading badly and I was wondering who sells reliable 5W+ 520 modules. I'm going to need the module ASAP. Thanks.
    Rick

  2. #2
    Join Date
    Dec 2008
    Location
    Canada
    Posts
    972

    Default

    No one so far IIRC...
    The highest I've seen is a 1Watt 520nm LD.

    Jerry
    See the LaserBee II and all other LaserBee LPM products here....
    All LaserBee Laser Power Meter Products

    New 3.2Watt RS232/USB LaserBee II LPM REVIEW


    Always in stock and ready to ship....
    Subsidary:-Pharma Electronic Solutions

  3. #3
    Join Date
    Dec 2007
    Location
    The West
    Posts
    1,285

    Default

    Lightspace sells 520nm modules
    Kvant sells 520nm modules ,
    Both reliable from my experience
    Don’t bother replacing that CNI 5 watt 532, they are crap �� and don’t last more than a few hundred hours
    RGB laser projectors
    Pangolin Beyond .NET
    APC40 Midi controllers
    Pangolin FB3 controllers
    DZ splitter
    LS MegaWatt Green Machine

  4. #4
    Join Date
    Jan 2011
    Location
    Boston
    Posts
    255

    Default

    Got that right. Mine only lasted ~300 hours.

  5. #5
    Join Date
    Oct 2012
    Location
    Germany
    Posts
    1,478

    Default

    ... most of the cheap diode-modules are running above specs and with drivers, that generates short high current peaks when switching ON/OFF (or TTL-modulating), what's killing the diodes pretty fast, even when running "at specs".

    I'm using high power diodes with currents of up to 30 Amps for material processing; and developing my own drivers, to get them lasting longer than given from the vendors -- if a diode is used within specs, at 100 percent of the recommended current, and with a "perfect" (spike-free) driver, it can last for let's say 10000 hours ... but when driving it stictly with 10 percents lower max. currents than recommended, this will double the lifetime

    But on the other side -- overdriving the diode (like in most actual modules) will reduce the lifetime drastically! ... and short overcurrent peaks when switching or TTL-modulating (especially when switching OFF) even more ...

    Viktor

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •