Here is an clip from one of the space qualified ones Bob mentioned.
"The RAFS employs classical rubidium gas cell atomic frequency standard
principles. It utilizes a physics package with a discrete isotopic filter
cell for best stability. The relatively large, cool absorption cell
provides excepti
Hi
> On Mar 26, 2018, at 2:18 AM, Attila Kinali wrote:
>
> On Sun, 25 Mar 2018 15:28:10 -0400
> Bob kb8tq wrote:
>
>> Well, magnetic shielding, temperature coupling between cells, photo detector
>> noise floor, phase noise of the various signals, basic stability of the
>> “ocxo” and
>> I’m s
In the PRS 10 The OCXO is controlled by a DAC not directly by the optical
package. With Corby's work on the Super where he also used in one case a good
and an other case not so good 10811 it is the S/N at the detector output in a
0.05 sec loop that makes the difference. Results where the same.
On Sun, 25 Mar 2018 15:28:10 -0400
Bob kb8tq wrote:
> Well, magnetic shielding, temperature coupling between cells, photo detector
> noise floor, phase noise of the various signals, basic stability of the
> “ocxo” and
> I’m sure a few other issues as well……
The effects of those seem not to be
On Sun, 25 Mar 2018 14:13:56 -0500
Dana Whitlow wrote:
> Could it be that with the narrow-band laser emission the dip in
> light transmission of the Rb cell is significantly improved? I know
> that diode lasers are generally not paragons of virtue when it comes
> to intensity noise, so I'm wond
Hi
> On Mar 25, 2018, at 9:18 AM, Attila Kinali wrote:
>
> Moikka moi,
>
> In the past, it has been again and again claimed that the HP 5065 has
> such an outstanding short term stability because of its large vapor cell.
> But the more I read, the less I believe this. E.g. if you look at the
Could it be that with the narrow-band laser emission the dip in
light transmission of the Rb cell is significantly improved? I know
that diode lasers are generally not paragons of virtue when it comes
to intensity noise, so I'm wondering what accounts for the claims of
better SNR with laser illum
Moikka moi,
In the past, it has been again and again claimed that the HP 5065 has
such an outstanding short term stability because of its large vapor cell.
But the more I read, the less I believe this. E.g. if you look at the
papers by the group around Gaetano Mileti and Christoph Affolderbach
fro
