Frequency measurement of a Sr lattice clock using an SI-second-referenced optical frequency comb linked by a global positioning system (GPS) | Zendy

Feng-Lei Hong | Zendy; Masao Takamoto | Zendy; Ryoichi Higashi | Zendy; Yasuhiro Fukuyama | Zendy; Jie Jiang | Zendy; Hidetoshi Katori | Zendy

Open Access

Frequency measurement of a Sr lattice clock using an SI-second-referenced optical frequency comb linked by a global positioning system (GPS)

Author(s) -

Feng-Lei Hong,

Masao Takamoto,

Ryoichi Higashi,

Yasuhiro Fukuyama,

Jie Jiang,

Hidetoshi Katori

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.005253

Subject(s) - atomic clock , optical frequency comb , optics , global positioning system , frequency comb , flywheel , physics , allan variance , laser , metrology , optical lattice , telecommunications , computer science , standard deviation , mathematics , engineering , superfluidity , statistics , quantum mechanics , aerospace engineering

We have established a transportable frequency measurement system using an optical frequency comb linked to a commercial Cs atomic clock, which is in turn linked to international atomic time (TAI) through global positioning system (GPS) time. An iodine-stabilized Nd:YAG laser is used as a flywheel in the frequency measurement system. This system is used to measure the absolute frequency of the clock transition of (87)Sr in an optical lattice. We obtained a fractional uncertainty of 2x10(-14) in the frequency measurement with a total averaging time of ~ 10(5) s over 9 days.

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