论文信息 - Frequency dissemination over 1000 km optical fiber with 10−21 frequency instability

Frequency dissemination over 1000 km optical fiber with 10−21 frequency instability

We demonstrate a frequency transfer scheme for over 1000 km optical fiber link with mode locked pulse train as the frequency carrier. The fractional frequency instability was measured as 2.75x10<sup>−15</sup>/s and 3.91x10<sup>−21</sup>/120000 s.

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