[time-nuts] MIT 2 inch cesium fountain, optically pumped

[paul swed]

This is simply great. I now know what to look for at the MIT flea next
spring (If its around? Pure speculation on my part)
No more GPS, CS, or RBs for me and to heck with LORAN C and WWVB also.
Regards
Paul
WB8TSL

On Thu, Nov 20, 2014 at 8:37 AM, Peter Torry <peter.torry at talktalk.net>
wrote:

> Hi Bob,
>
> Some time ago Hoptroff  produced a Cs pocket watch using the Symmetricom
> SA45s - now how long for a wrist watch !!
>
> http://www.engadget.com/2013/05/01/hoptroff-no-10/
>
> Peter
> (still pendulum controlled)
>
>
>
>
> On 20/11/2014 12:38, Bob Camp wrote:
>
>> Hi
>>
>> So the wrist watch sized fountain that was promised 15 years ago isn’t
>> gong to be here for Christmas this year?
>>
>> Bob
>>
>>  On Nov 20, 2014, at 12:17 AM, Magnus Danielson <
>>> magnus at rubidium.dyndns.org> wrote:
>>>
>>> Hi Rick,
>>>
>>> They did not mention the complexity of the laser system they needed,
>>> especially considering that the optical bench of a fountain isn't all that
>>> small, and also because they want to de-tune lasers. While they seems to
>>> have an idea, they didn't touch on that subject.
>>>
>>> Nice to see that people think in a different way thought.
>>>
>>> Looking forward to see the progress on this one.
>>>
>>> Cheers,
>>> Magnus
>>>
>>> On 11/20/2014 05:24 AM, Richard (Rick) Karlquist wrote:
>>>
>>>> See:
>>>>
>>>> http://newsoffice.mit.edu/2014/portable-atomic-clocks-1112
>>>>
>>>> Any comments?
>>>>
>>>> Rick Karlquist N6RK
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