Long-distance frequency dissemination with a resolution of 10-17

Details Long-distance frequency dissemination with a resolution of 10-17 Long-distance frequency dissemination with a resolution of 10-17

2005-06-17

arxiv.org/abs/quant-ph/0506143v1

Physical Review Letters 94 (2005) 203904

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.94.203904

We use a new technique to disseminate microwave reference signals along ordinary optical fiber. The fractional frequency resolution of a link of 86 km in length is 10-17 for a one day integration time, a resolution higher than the stability of the best microwave or optical clocks. We use the link to compare the microwave reference and a CO2/OsO4 frequency standard that stabilizes a femtosecond laser frequency comb. This demonstrates a resolution of 3.10-14 at 1 s. An upper value of the instability introduced by the femtosecond laser-based synthesizer is estimated as 1.10-14 at 1 s.

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