[Laser] LED used as APD

[steve kavanagh]

I came across some more mentions of using LEDs as APDs

http://www.springerlink.com/content/y25t755736268r87/

(rather challenging reading !)

http://digital-library.theiet.org/getabs/servlet/GetabsServlet?prog=normal&id=ELLEAK000014000017000553000001&idtype=cvips&gifs=yes&ref=no

(I found the abstract in many places...the paper itself doesn't appear to be
on line)

But plain old photovoltaic mode is enough challenge for me at the moment !

73,
Steve VE3SMA