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Analytical and experimental study on a bent abrupt taper.
Optics Express
|December 28, 2020
Summary
This study introduces a new analytical model for bent fiber tapers, accurately predicting light modes and accommodating bending variations. The model successfully separates tapering and bending effects, validated by experimental results.
Area of Science:
- Optical Engineering
- Photonics
- Fiber Optics
Background:
- Single-mode optical fibers are crucial for data transmission.
- Perturbations like bending can alter light propagation in fiber tapers.
- Existing models may not fully capture combined tapering and bending effects.
Purpose of the Study:
- To develop an analytical coupling model for perturbed abrupt fiber tapers.
- To predict the behavior of higher-order modes (LP11, LP12) in bent tapers.
- To provide a unified formulation for analyzing tapering and bending effects separately.
Main Methods:
- Developed an analytical coupling model for fiber tapers.
- Incorporated a perturbation function to model bending variations.
- Formulated a method to treat tapering and bending effects independently.
Main Results:
- The model predicts the presence of LP0m, LP11, and LP12 modes in bent tapers.
- The perturbation function effectively models bending variations.
- Tapering and bending effects can be analyzed separately within the model.
Conclusions:
- The proposed analytical model is viable for perturbed abrupt fiber tapers.
- The model accurately predicts mode behavior in bent fiber tapers.
- The method offers a flexible approach to analyze optical fiber perturbations.
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