Accurate and fast fiber transfer delay measurement based on phase discrimination and frequency measurement.

  title={Accurate and fast fiber transfer delay measurement based on phase discrimination and frequency measurement.},
  author={J. W. Dong and B. Wang and Cong Gao and L. J. Wang},
  journal={The Review of scientific instruments},
  volume={87 9},
An accurate and fast fiber transfer delay measurement method is demonstrated. As a key technique, a simple ambiguity resolving process based on phase discrimination and frequency measurement is used to overcome the contradiction between measurement accuracy and system complexity. The system achieves a high measurement accuracy of 0.2 ps with a 0.1 ps measurement resolution and a large dynamic range up to 50 km as well as no dead zone. 

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