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Long-Term Stability of Chip-Scale Atomic Clock Physics Packages



Svenja A. Knappe, Vladislav Gerginov, V Shah, Alan Brannon, Hugh Robinson, Leo W. Hollberg, John E. Kitching


We present measurements regarding the long-term stability of chip-scale atomic clock (CSAC) physics packages. The tight requirements for the temperature stability of vapor cell and laser in these packages currently limit their frequency stability after 100-1000 seconds. Even with advanced MEMS packaging techniques such as vacuum sealing or thermal insulation, it seems difficult to maintain the required stabilities in small, low-power setups over a large range of ambient temperatures. In order to make CSACs useful devices for portable applications in the area of navigation and communication this problem needs to be addressed.
Proceedings Title
Proc. SPIE Conf.
Conference Dates
January 20-25, 2007
Conference Location
San Jose, CA
Conference Title
SPIE Photonics West Conference


atomic clock, coherent population trapping, CPT, CSAC, MEMS, microfabrication


Knappe, S. , Gerginov, V. , Shah, V. , Brannon, A. , Robinson, H. , Hollberg, L. and Kitching, J. (2007), Long-Term Stability of Chip-Scale Atomic Clock Physics Packages, Proc. SPIE Conf., San Jose, CA, [online], (Accessed July 16, 2024)


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Created January 20, 2007, Updated August 10, 2018