Analysis of ring-structured Bragg fibres for single TE mode guidance

Area of Science:

• Optical Fiber Technology
• Photonics
• Materials Science

Background:

• Bragg fibers offer unique light-confining properties.
• Controlling polarization modes is crucial for optical communication.

Purpose of the Study:

• Investigate ring-structured Bragg fibers for single TE-polarization mode guidance.
• Analyze the impact of air fraction on fiber transmission properties.

Main Methods:

• Fabrication and characterization of ring-structured Bragg fibers.
• Numerical simulations to model transmission properties.
• Exploration of an approximate homogenization model.

Main Results:

• Demonstrated single TE-polarization mode operation in ring-structured Bragg fibers.
• Quantified the influence of air fraction on transmission spectra.
• Identified surface mode transitions based on fiber design parameters.

Conclusions:

• Ring-structured Bragg fibers are suitable for single TE-polarization mode applications.
• Air fraction is a critical design parameter for optimizing transmission.
• Understanding surface modes is essential for fiber design and performance.