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

@article{Dong2016AccurateAF,
  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},
  year={2016},
  volume={87 9},
  pages={
          093102
        }
}
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. 
View on PubMed
arxiv.org
8 Citations
Methods Citations
3

Figures from this paper

8 Citations

Multichannel precision time delay measurement in optical fibers

  • Jingwen DongBo WangH. SiLijun Wang
  • Physics
    2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFC)
  • 2017
A real-time calibration method is employed to detect and eliminate system delay fluctuation and achieves two-channel fiber transmission delay measurement with a high accuracy of 0.1 picosecond and dynamic range over tens of kilometers.

Time Delay Measurement in Optical Fibers Based on Phase Detection

We developed an efficient and accurate fiber transfer delay measurement system. The main principle is to convert the fiber transfer delay in time domain into the phase detection, and eliminating the…

Accurate Signal Transmission Delay Measurement in Optical Fibers with Self-Calibration Configuration

We demonstrate a compact signal transmission delay measurement system in optical fibers. The frequency of a microwave signal is locked to the signal transmission delay which can be obtained in…

Accurate self-calibrated fiber transfer delay measurement.

Using the simplified self-calibration configuration, the measurement uncertainty of fiber transfer delay is improved and the accuracy of this method achieves a sub-picosecond accuracy.

High Precise Time Delay Measurement in Optical Fiber

Due to its properties of low attenuation, high capacity and reliability, the widespread optical fiber network has become an attractive option for long-distance transmission. The signal transmission…

Method of fiber transfer delay measurement based on phase quantization and delay synthesis.

A novel method, to the best of the authors' knowledge, of fiber transfer delay (FTD) measurement based on phase quantization and delay synthesis is proposed and demonstrated, and a self-check and error-correction method is proposed so as to greatly improve the reliability of measurement.

Phase-Derived Ranging Based Fiber Transfer Delay Measurement Using a Composite Signal for Distributed Radars with Fiber Networks

  • Business
    Photonics
  • 2023
Fiber transfer delay (FTD) variations influence the coherence of distributed radars with fiber networks, resulting in a performance degradation in target detecting and imaging. To measure and…

Ground-to-satellite time and frequency synchronization link with active carrier phase compensation.

The proposed ground-to-satellite link and active compensation method has potential applications in frequency standard dissemination to remote receivers (including ground stations or satellites).

24 References

Highly accurate fiber transfer delay measurement with large dynamic range.

A novel and efficient method for fiber transfer delay measurement is demonstrated that achieves a sub-picosecond resolution, with an accuracy of 1 picosecond, and a large dynamic range up to 50 km as well as no measurement dead zone.

Simple and highly accurate technique for time delay measurement in optical fibers by free-running laser configuration.

A novel and simple technique for the measurement of time delay in the optical fiber by a free-running laser is proposed and demonstrated. The fiber to be measured was spliced to an erbium-doped fiber…

High-resolution, large dynamic range fiber length measurement based on a frequency-shifted asymmetric Sagnac interferometer.

A single-mode fiber length and dispersion measurement system based on what is believed to be a novel frequency-shifted asymmetric Sagnac interferometer incorporating an acousto-optic modulator (AOM) with a resolution of approximately 1 part per million for long fibers is proposed.

High-resolution measurement of fiber length by using a mode-locked fiber laser configuration.

A simple method to precisely measure fiber length has been experimentally demonstrated by using a mode-locked fiber laser configuration with a long-range nonlinear optical loop mirror that includes the measured fiber.

Rapid amplitude and group-delay measurement system based on intra-cavity-modulated swept-lasers

A high-speed wavelength-swept laser for application in a real-time optical device characterization system capable of simultaneous measurement of both the spectral amplitude and group-delay responses of the device-under-test at a scan rate of 22 Hz.

Two-way time and frequency transfer using optical fibers

A two-way time and frequency transfer technique using SONET (SDH) protocol is described. The system has demonstrated stabilities of 10 ps in "loopback" configuration. Preliminary measurements on a…

Time transfer through optical fibres over a distance of 73 km with an uncertainty below 100 ps

We demonstrate the capability of accurate time transfer using optical fibres over long distances utilizing a dark fibre and hardware which is usually employed in two-way satellite time and frequency…

Fiber Length Measurement Technique Employing Self-Seeding Laser Oscillation of Fabry–Perot Laser Diode

A simple fiber length measurement technique has been proposed and demonstrated that uses the self-seeding laser oscillation of a Fabry–Perot laser. We measured the length of an optical fiber from the…

Photon probe — an optical-fiber time-domain reflectometer

This paper describes an optical time-domain reflectometer that incorporates a gated photomultiplier receiver. The instrument can detect extremely weak reflections from fiber breaks (more than 65 dB…

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.…