[time-nuts] Pressure sensitivity of Rb vapor cell standards

[Dana Whitlow]

Don't forget that an AO modulator can also be used to tune the frequency
over a modest range,
(MHz or more), at the cost of the output beam angle's changing slightly as
well.

Dana

On Wed, Feb 19, 2020 at 11:17 AM Attila Kinali <attila at kinali.ch> wrote:

> On Wed, 19 Feb 2020 01:40:56 +0100
> Magnus Danielson <magnus at rubidium.se> wrote:
>
> > The one thing that one now suffers is that the intensity changes as the
> > servo pulls it around, I've not seen an explanation of how that is
> > handled for CW operation. For side-band operation one can use the
> > AC-modulation amplitude, as one disperse energy from the central carrier.
>
> In those systems where they care about this, they use an additional
> loop, outside of the laser head itself, that uses an acusto-optic modulator
> to control the intensity. The second paper that I cited in the original
> mail mentions that as well.
>
>
>                                 Attila Kinali
>
> --
> In science if you know what you are doing you should not be doing it.
> In engineering if you do not know what you are doing you should not be
> doing it.
>         -- Richard W. Hamming, The Art of Doing Science and Engineering
>
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