Fiber-Based Frequency Distribution Based on Long-Haul Communication Lasers

Abstract

Resent research and development of optical clocks has increased the need and requirement of better performing time and frequency transfer over baselines longer than 100 km. This need has resulted in a lot of activities in transfer methods using optical fiber, some of them in dedicated fibers and others in already existing fiber networks. This study has focused on one-way transmission over a fiber-optic WDM network. The results show that it is possible to perform a one-way time and frequency transfer with two wavelengths and, by evaluating these two against each other, create a correction signal for compensation for influences along the transmission path. This experiment has shown proof of concept, but further work is needed. Future work includes development of a physical correction component in the end of the link that incorporates the steering signal from the difference between the two wavelengths.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2009
Accession Number
ADA518090

Entities

People

  • Kenneth Jaldehag
  • Per O. Hedekvist
  • Sven-christian Ebenhag

Organizations

  • SP Technical Research Institute of Sweden

Tags

DTIC Thesaurus Topics

  • Access Time
  • C Band
  • Clocks
  • Controlled Environment
  • Electronic Mail
  • Equations
  • Fibers
  • Frequency
  • Group Velocity
  • Intervals
  • Measurement
  • Optical Fibers
  • Refractive Index
  • Time Domain Reflectometer
  • Time Interval Counters
  • Time Intervals
  • Wavelength Division Multiplexing

Fields of Study

  • Computer science

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy