That's an interesting idea. You'll probably need an amp and most importantly a capacitor for DC blocking. You might also look at optical to electrical converters, they are probably far more expensive than the hackrf was.
On Sun, Sep 14, 2014 at 3:44 PM, Ian Davidson <[email protected]> wrote: > An unusual request here, HackRF folks. > > > > I'm looking at the possibility of using HackRF and SDR# (or similar) to > detect the beating of two lasers on a fast photodiode. > > > > I know the frequencies of light and RF are several orders of magnitude > different but if the lasers (or cavities) are any good (near single mode, > stable etc) then you *do* get a heterodyne beat (Google 'laser heterodyne > spectroscopy' if you are keen). > > > > My question is - can anyone on the forum offer me any thoughts on the > best way to interface a Photodiode to the HAckRF input? > > > > Many Thanks > > > > Ian > > > > _______________________________________________ > HackRF-dev mailing list > [email protected] > http://nine.pairlist.net/mailman/listinfo/hackrf-dev > >
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