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Frequency Measurement of an Optical Lattice Clock

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6 Author(s)
Feng-Lei Hong ; Nat. Inst. of Adv. Ind. Sci. & Technol, Ibaraki ; Fujii, Y. ; Imae, M. ; Takamoto, M.
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A frequency measurement system is developed away from a National Metrological Institute with a frequency link to International Atomic Time (TAI). The absolute frequency of the 1S0 -3P0 clock transition of the 87Sr lattice clock is determined to be 429,228,004,229,875(4) Hz. The frequency measurement system is being further improved by introducing an optical fiber link and by upgrading the GPS link.

Published in:

IEEE/LEOS Summer Topical Meetings, 2007 Digest of the

Date of Conference:

23-25 July 2007