[time-nuts] The difficulty of low noise measurements
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Jan 11 20:43:51 UTC 2020
--------
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
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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