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Resources for using APDs?

Discussion in 'Electronic Design' started by Michael, May 23, 2007.

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  1. Michael

    Michael Guest

    Hi - I'm working on a project where I'll need a very sensitive APD,
    ideally tuned to a pretty specific frequency (though I can put an
    optical filter in front of it if necessary). I don't need the single
    photon sensitivity that some devices have (though that'd be nice), but
    the higher the sensitivity the better. I also don't need much
    information from these devices - I only need an on or off signal, as I
    plan on using it in a time of flight laser range finder.

    Are there any good resources for designing APD detectors for this sort
    of purpose?

    Also, how important is cooling for these things? I'm hoping for this
    to be a fairly low power device, so the massive active cooling I've
    seen in some devices worries me. For example, I was looking at the
    paper here: and
    they were cooling down to 77K. That's pretty darn cold!


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