Stabilized microwave-frequency transfer using optical phase sensing and actuation.

@article{Schediwy2017StabilizedMT,
  title={Stabilized microwave-frequency transfer using optical phase sensing and actuation.},
  author={Sascha. W. Schediwy and David R. Gozzard and Simon Stobie and Jocias A. Malan and K. J. B. Grainge},
  journal={Optics letters},
  year={2017},
  volume={42 9},
  pages={
          1648-1651
        }
}
We present a stabilized microwave-frequency transfer technique that is based on optical phase sensing and optical phase actuation. This technique shares several attributes with optical-frequency transfer and, therefore, exhibits several advantages over other microwave-frequency transfer techniques. We demonstrated the stabilized transfer of an 8000 MHz microwave-frequency signal over a 166 km metropolitan optical fiber network, achieving a fractional frequency stability of 6.8×10-14  Hz/Hz at 1… 

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References

SHOWING 1-10 OF 15 REFERENCES
Remote transfer of ultrastable frequency references via fiber networks.
TLDR
Three distinct techniques exist for distributing an ultrastable frequency reference over optical fibers, and it is expected that the optical transfer to be similar in performance to the cw optical frequency transfer.
Stable radio-frequency transfer over optical fiber by phase-conjugate frequency mixing.
TLDR
By combining the technique with the short-term stability provided by a remote, high-quality quartz oscillator, this system is potentially applicable to transcontinental optical-fiber time and frequency dissemination where the optical round-trip propagation time is significant.
Photonic microwave signals with zeptosecond-level absolute timing noise
Ultralow-noise microwave signals are generated at 12 GHz by a low-noise fibre-based frequency comb and cutting-edge photodetection techniques. The microwave signals have a fractional frequency
High-resolution microwave frequency dissemination on an 86-km urban optical link
TLDR
The first demonstration of a long-distance ultra-stable frequency dissemination in the microwave range through an 86-km urban optical link with fractional frequency instability is reported.
Stable Photonic Links for Frequency and Time Transfer in the Deep-Space Network and Antenna Arrays
TLDR
The pioneering DSN photonic link developments and capabilities are summarized, and a stabilized multiphotonic link architecture for ultrastable signal transport in antenna arrays is described.
Delivering the same optical frequency at two places: accurate cancellation of phase noise introduced by an optical fiber or other time-varying path.
TLDR
A simple double-pass fiber noise measurement and control system is described, which is demonstrated to provide millihertz accuracy of noise cancellation.
Precise and Continuous Time and Frequency Synchronisation at the 5×10-19 Accuracy Level
The synchronisation of time and frequency between remote locations is crucial for many important applications. Conventional time and frequency dissemination often makes use of satellite links.
A clock network for geodesy and fundamental science
TLDR
The capability of performing high resolution international clock comparisons paves the way for a redefinition of the unit of time and an all-optical dissemination of the SI-second.
MeerKAT—The South African Array With Composite Dishes and Wide-Band Single Pixel Feeds
  • J. Jonas
  • Physics
    Proceedings of the IEEE
  • 2009
TLDR
The MeerKAT is a precursor for the ldquosmall dish plus single-pixel wide-band feedrdquo scenario for the Square Kilometre Array (SKA), and the individual receptors match the SKA draft specification for midband dishes.
...
...