Sub-ps resolution clock-offset measurement over a 114 km fiber link using linear optical sampling
Optics Express, 2020•opg.optica.org
We demonstrate a sub-ps resolution clock-offset measurement based on linear optical
sampling technique via a 114 km fiber link by transferring a dual optical frequency comb.
The time deviation between two distance clocks is 110 fs at 1 s and 22 fs at 100 s averaging,
and the standard deviation of the measured clock offset is 237 fs. This sub-ps level of clock
offset measurement should benefit many time synchronization applications via long fiber
links.
sampling technique via a 114 km fiber link by transferring a dual optical frequency comb.
The time deviation between two distance clocks is 110 fs at 1 s and 22 fs at 100 s averaging,
and the standard deviation of the measured clock offset is 237 fs. This sub-ps level of clock
offset measurement should benefit many time synchronization applications via long fiber
links.
We demonstrate a sub-ps resolution clock-offset measurement based on linear optical sampling technique via a 114 km fiber link by transferring a dual optical frequency comb. The time deviation between two distance clocks is 110 fs at 1 s and 22 fs at 100 s averaging, and the standard deviation of the measured clock offset is 237 fs. This sub-ps level of clock offset measurement should benefit many time synchronization applications via long fiber links.
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