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Updated: Jan 4, 2026
08:48
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
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Optimal crosstalk suppression in multicore fibers.
B Jaramillo Ávila1, J M Torres2, R de J León-Montiel3
1CONACYT-Instituto Nacional de Astrofísica, Óptica y Electrónica, Calle Luis Enrique Erro No. 1. Sta. Ma. Tonantzintla, Pue., C.P. 72840, Mexico. jaramillo@inaoep.mx.
Scientific Reports
|November 2, 2019
Summary
We developed a hybrid method to optimize random core radius fluctuations in multicore fibers, suppressing unwanted power transfer and crosstalk. This approach enhances signal integrity in optical communication systems.
Area of Science:
- Optical Physics
- Photonics
- Fiber Optics
Background:
- Multicore fibers offer increased transmission capacity but suffer from crosstalk.
- Controlling power transfer between cores is crucial for signal fidelity.
- Random fluctuations in core geometry can impact signal propagation.
Purpose of the Study:
- To develop a method for optimizing random core radius fluctuations.
- To suppress power transfer between outer and inner cores in cyclic symmetric multicore fibers.
- To analytically determine parameters that minimize crosstalk.
Main Methods:
- A hybrid analytic-numerical approach was developed.
- Optimization of fluctuation amplitude and frequency.
- Finite difference beam propagation methods for numerical validation.
Main Results:
- Analytically derived noise amplitude parameters that optimally suppress crosstalk.
- Numerical experiments confirmed predictions for C-band fibers.
- The method provides optimum fluctuation amplitude independent of array geometry.
Conclusions:
- The hybrid method effectively suppresses crosstalk in multicore fibers.
- The analytic framework is general and applicable to systems described by coupled mode theory.
- This technique enhances signal integrity in optical communication systems.
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