[time-nuts] Photodiodes for high frequency OPLL

Attila Kinali attila at kinali.ch
Sat Mar 30 15:09:21 EDT 2013


On Sat, 30 Mar 2013 13:46:51 -0400
"jmfranke" <jmfranke at cox.net> wrote:

> I used UDT PIN10 photodiodes to observe the mode spacings in HeNe lasers. 
> The typical mode spacings were around 600 MHz.

This sounds interesting. According to the datasheet i've found,
the PIN10D has a response time of 25ns, which would suggest a maximum
frequency around 40MHz.

How does your circuit look like? How much signal do you get
out of the photodiode?

			Attila Kinali

-- 
The people on 4chan are like brilliant psychologists
who also happen to be insane and gross.
		-- unknown


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