Novel design of an all-cryogenic RF pound circuit

Ronni Basu, R. T. Wang, G. J. Dick

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

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We report on the design, construction and test of a new all-cryogenic RF Pound circuit used to stabilize a 100 MHz VCXO. Here, all active and passive RF components used to accomplish the phase modulation and detect a PM to AM conversion have been installed into the cryogenic environment. In conjunction with a high-Q cryogenic sapphire resonator a Pound discriminator sensitivity of 0.1 mV/Hz was seen experimentally. Based on this sensitivity and the noise properties of the pre-amplifier of the Pound signal, we calculate a limit of the oscillator's Allan deviation as low as 4middot10-16/radictau. Experimentally, the first experiments gave a stability of 1middot10-13 at 1 second.
Original languageEnglish
Title of host publicationProceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 2005.
Publication date2005
ISBN (Print)0-7803-9053-9
Publication statusPublished - 2005
Event2005 IEEE International Frequency Control Symposium and Exposition - Vancouver, Canada
Duration: 29 Aug 200531 Aug 2005


Conference2005 IEEE International Frequency Control Symposium and Exposition
Internet address

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