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A Portable Rubidium Fountain



Paul D. Kunz, Steven R. Jefferts, Thomas P. Heavner


We are developing a transportable laser-cooled rubidium (Rb) atomic fountain frequency standard. Over the last year we have built the Ramsey cavity and rubidium source oven and are preparing to assemble the physics package. We have also made numerous refinements to the laser package including transitioning to a new style of laser diode, vastly improving the optical phase-locked loops (OPLL), and improving the optical spatial mode to get more power out of the optical fibers. These refinements have enabled the laser cooling to collect many more atoms which will improve the fountain’s signal-to-noise ratio.
Proceedings Title
PTTI Conference Proceedings 2010
Conference Dates
November 15-18, 2010
Conference Location
Restin, VA


Atomic fountain, atomic clock, Rubidium


Kunz, P. , Jefferts, S. and Heavner, T. (2010), A Portable Rubidium Fountain, PTTI Conference Proceedings 2010, Restin, VA (Accessed July 12, 2024)


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Created November 15, 2010, Updated February 19, 2017