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Technology

Ultra-high Bandwidth Frequency-domain Polarization Variation Analyzer

Invention Reference Number

202405800
Closeup of fiber optic strands transmitting vivid blue and green light. Image from Adobe Stock

Polarization drift in quantum networks is a major issue. Fiber transforms a transmitted signal’s polarization differently depending on its environment. This technology enables efficient automated long-term characterization of those transformations spanning many orders of magnitude in the frequency domain.

Description

Polarization drift in quantum networks is a significant challenge because fiber optics can change the polarization of signals differently based on environmental conditions. Understanding how fiber affects signal polarization is crucial for making informed design choices. This technology aims to automate the long-term monitoring of these changes effectively across a broad range of frequencies (> MHz to < µHz).

Leveraging advanced high-speed processing on flexibly sampled measurements of electronic signals, this technology enables the frequency-domain analysis of electronic signals over large bandwidths and with flexible data rates and automated statistical processing.

Benefits

  • Broad frequency-domain characterization
  • Provides efficient method to analyze large amounts of data.
  • Captures details that time-domain analysis has difficulty with.
  • Polarization signal can be replaced with any electrical signal for frequency-domain analysis

Applications and Industries

  • Deployed fiber characterization for use in polarization-sensitive networks, e.g., quantum and high-performance classical networks
  • Analysis of polarization from fiber sensor signal
  • Long-term frequency-domain analysis of generic electronic signals

Contact:

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.