Abstract
The propagation distance confines the development of precise time-frequency transmission using optical frequency combs due to the dispersion of the link. Here we disseminate a fiber re-circulating loop to emulate 504-km comb-based transmission. An optical filter in combination with a spool of dispersion compensation fiber is utilized to restrict the dispersion effect. The residual instability reached 4.0 × 10−14 at 1 s and 7.32 × 10−18 at 10,000 s over the 504-km link. The result indicated that this approach could meet the demand for long-haul clock transmission and comparison in the giant fiber-optic gyroscope to detect the seismic and gravitational potential.
Funder
National Natural Science Foundation of China
Subject
Atomic and Molecular Physics, and Optics
Cited by
2 articles.
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