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Correlation between geometric parametric instability sidebands in graded-index multimode fibers.

Zhixiang Deng1, Yu Chen1, Jun Liu1

  • 1International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.

Chaos (Woodbury, N.Y.)
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Summary
This summary is machine-generated.

Investigating light propagation in graded-index multimode fibers under noisy conditions reveals independent energy correlations between spectral sidebands. This finding aids in developing efficient photon pair sources by minimizing Raman decorrelations.

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Area of Science:

  • Optics and Photonics
  • Fiber Optics
  • Quantum Optics

Background:

  • Graded-index multimode fibers support complex light propagation dynamics.
  • Understanding spectral sideband correlations is crucial for advanced optical applications.

Purpose of the Study:

  • To analyze the energy correlation between spectral sidebands in noisy graded-index multimode fibers.
  • To investigate the independence of geometric parametric instability processes.

Main Methods:

  • Spectral analysis of light propagation under noisy conditions.
  • Simulations to obtain spectra and analyze energy correlations.
  • Utilizing scattergrams and frequency-dependent energy correlation maps.

Main Results:

  • Conjugate spectral sideband pairs show high energy correlation.
  • Cross-combinations of spectral sidebands exhibit poor correlation.
  • Geometric parametric instability processes for each sideband pair occur independently.

Conclusions:

  • The independence of geometric parametric instability processes is confirmed.
  • Findings provide insights into the dynamics of geometric parametric instability.
  • Facilitates the development of high-efficiency photon pair sources with reduced Raman decorrelations.