[time-nuts] The difficulty of low noise measurements

Poul-Henning Kamp phk at phk.freebsd.dk
Sat Jan 11 20:43:51 UTC 2020


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In message <454f3441-6479-cc54-7c1c-55f61b5fab1a at earthlink.net>, jimlux writes:

>That is an interesting idea. I wonder if you could make a short distance 
>fiber connection by just having your notional 10MHz source directly 
>drive the diode, with maybe a series resistor (so you don't need a power 
>supply).  You could almost certainly do this for an RS232 output. I 
>wonder if there's a "no power required" approach for the receiving end.

There are people abusing TOSLINK hardware along those lines.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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Never attribute to malice what can adequately be explained by incompetence.




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