All-Digital Radio-Frequency Signal Distribution Via Optical Fibers

@article{Hsu2012AllDigitalRS,
  title={All-Digital Radio-Frequency Signal Distribution Via Optical Fibers},
  author={Magnus T. L. Hsu and Yabai He and D. A. Shaddock and R. Bruce Warrington and M. B. Gray},
  journal={IEEE Photonics Technology Letters},
  year={2012},
  volume={24},
  pages={1015-1017}
}
We present a radio-frequency (RF) signal distribution system via optical fibers. We utilize an all-digital platform that encompasses a phase-locked loop, numerically-controlled oscillator, and fiber phase noise cancellation system. Our system achieves a fractional frequency transfer stability of 4 × 10-13 at 1 s and 6 × 10-17 at one day for the distribution of RF signals over 70 km of optical fiber. We demonstrate that this performance can be achieved with standard crystal oscillators. Our… CONTINUE READING
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