Development of a Double-Bulb Rubidium Maser

Details Development of a Double-Bulb Rubidium Maser Development of a Double-Bulb Rubidium Maser

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aps..cntfb1902p&link_type=abstract

American Physical Society, Centennial Meeting, March 20-26, 1999, Atlanta, GA, Bulletin of the American Physical Society, Vol.

Physics

Scientific paper

We are developing a new type of atomic clock, the double-bulb rubidium maser (DBRM), consisting of two connected quartz chambers: one for optical pumping of rubidium atoms and one where active maser oscillation can occur on the ^87Rb hyperfine transition at 6.835 GHz. The bulbs are coated and have no buffer gas, allowing the Rb atoms to effuse from the pumping cell to maser cell as has been recently observed. The novel design of the DBRM will effectively eliminate the optical pumping light shift and buffer gas pressure shift that limit conventional rubidium frequency standards. The DBRM may provide short term frequency stability superior to that of a room temperature hydrogen maser, but in a smaller and more robust unit. We are currently studying the effects of wall-coatings on polarization loss and decoherence for optically pumped ^87Rb atoms. Recent experimental results will be reported.

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