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Proceedings Paper

Miniature atomic clock for space applications
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Paper Abstract

This paper presents a novel architecture for a high performance atomic clock based on the use of miniature optical whispering gallery mode (WGM) resonators. Following the approach of stabilizing a laser local oscillator to an optical transition in an atom or ion, as used in advanced atomic clock, a semiconductor laser is used for stabilization to the D1 line of Rb atoms, held in a small vapor cell. The laser is self-injection locked to a WGM resonator to reduce its linewidth. To produce the RF output of the clock, a second WGM resonator excited with a second cw semiconductor laser produces an optical frequency comb that is demodulated on a fast photodiode. Locking the resonator that generates the frequency comb to the laser stabilized to the Rb transition transfers the stability of the atomic transition to the RF output of the clock. In this way, a miniature all-optical atomic clock is realized. Details of the operation of the clock and application of the architecture to other atomic systems, such as a ytterbium ion, will be described.

Paper Details

Date Published: 1 September 2015
PDF: 6 pages
Proc. SPIE 9616, Nanophotonics and Macrophotonics for Space Environments IX, 96160L (1 September 2015); doi: 10.1117/12.2189218
Show Author Affiliations
Lute Maleki, OEwaves, Inc. (United States)
Anatoliy Savchenkov, OEwaves, Inc. (United States)
Wei Liang, OEwaves, Inc. (United States)
Danny Eliyahu, OEwaves, Inc. (United States)
Vladimir Ilchenko, OEwaves, Inc. (United States)
Elijah Dale, OEwaves, Inc. (United States)
Andrey Matsko, OEwaves, Inc. (United States)


Published in SPIE Proceedings Vol. 9616:
Nanophotonics and Macrophotonics for Space Environments IX
Edward W. Taylor; David A. Cardimona, Editor(s)

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