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laser and photo diode

Discussion in 'Electronic Components' started by ikova, Nov 13, 2003.

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  1. ikova

    ikova Guest

    Could enyone please tell me which photo diode i have to use ( bpw 43, bpw 34
    or sfh 203?) for detecting beam from laser pointer. ( I don't know the
    wavelength but it's simple laser I bought in market - about 4$ ).

  2. LameDuck

    LameDuck Guest

    Not entirely sure of the wavelength that's being
    emitted by your pointer's light source, but I'd
    venture it's 640nm. Either way, any detector cap-
    able of detecting visible light (in this case
    "red") should work...
  3. ikova

    ikova Guest

    Thanks again.
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