[time-nuts] optically excite a quartz crystal?
magnus at rubidium.dyndns.org
Sun Apr 20 16:28:06 EDT 2014
On 04/20/2014 07:35 PM, cdelect at juno.com wrote:
> After reading about how the BVA oscillators avoid the problems of "on
> crystal" electrodes I was wondering if anyone has tried to optically
> excite a quartz crystal in an oscillator?
> (Use a modulated laser to drive the bare crystal, and a photodetector
> setup to detect and provide feedback?)
> Seems like it might work. Any comments?
I only wonder if you can get sufficient drive-level that way. I haven't
heard about a way to drive quartz optically even if I can consider a few
different mechanisms. You have any papers on that?
Optically sensing the vibration I consider trivial.
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