[Laser] PIN Diode Suggestion

[Steve J. Noll]

As the active area increases, so does the Dark Current (Id)
and the capacitance.  For 800 Hz BW I doubt you would have
problems with the capacitance slowing things down (especially
if you bias ther detector) and the Dark Current might have to
be pretty bad to notice.  I feel the most important factor is
that you use an active area large enough to capture all of
the available signal - like several mm in area.  Hopefully you
will see an improvement over the phototransistor, which almost
always have a very tiny active area and are relatively slow. 

Steve J. Noll | Ventura California | sjnoll@big-list.com
   WA6EJO     | The Used Equipment Dealer Directory:
              | http://www.big-list.com
              | The Peltier Device Information Site:
              | http://www.peltier-info.com