[time-nuts] OT: AC voltage standard

[Henk ten Pierick]

Bruce,

Great!

Henk


On Nov 8, 2007, at 22:11, Bruce Griffiths wrote:

> Henk ten Pierick wrote:
>> On Nov 6, 2007, at 22:43, Bruce Griffiths wrote:
>>
>>
>>> NIST's AC standard is currently useful for generating frequencies
>>> up to
>>> 100kHz with 10MHz the projected useful limit for a 10Gb/s bit  
>>> stream.
>>> With say a 1Mb/s bit stream output frequencies up to 1KHz or so  
>>> should
>>> be feasible with high amplitude stability.
>>>
>>
>>
>> The stated 10Gigabits/s for a bit stream, is that a typo?
>>
>> Henk
>>
> No typo, a stack of Josephson junctions "excited" by a 15GHz RF source
> is used together with a 10GBb/s data source see papers listed at:
> http://www.acdc.nist.gov/acdc.nist.gov/ac%20JVS%20page.html
>
> In particular:
> http://www.acdc.nist.gov/acdc.nist.gov/ac%20JVS%20page_files/ 
> acjvs2006_extAbstract-tel.pdf
>
> Bruce
>
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