Didier wrote: > If your concern is simply a stable frequency reference, that's true, even > though I am not sure what kind of cleanup oscillator would match the short > term stability of a maser. But also if you want to use it as a time > standard, the phase shift in the fiber has to be compensated, and it's > variations over temperature/humidity/gravity and whatnot must be accounted > for. > > This is time-nuts, we don't simply want to make things work, we want to make > them work good :-) > > Didier > > Didier
A linear temperature ramp will create a linear ramp (equivalent to a frequency shift) in the fiber delay. Such temperature ramps may be expected at least twice a day. In other words the the rate of change of temperature needs to be low to preserve the frequency accuracy at the receive end of the fiber. Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
