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Measurement of optical fiber diameter using the fast Fourier transform
Applied Optics
|March 12, 2010
Summary
This study details a new method for measuring optical fiber diameters using Fourier transforms of scattered light intensity. The technique accurately determines fiber dimensions by analyzing fringe spacing variations.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Optical fibers are crucial components in modern technology.
- Accurate measurement of fiber diameter is essential for performance.
- Existing measurement techniques can be complex or limited.
Purpose of the Study:
- To present a novel method for determining optical fiber diameters.
- To validate the method through theoretical analysis and experimental verification.
- To compare theoretical predictions with experimental data.
Main Methods:
- Illuminating an optical fiber and analyzing the far-zone scattered intensity.
- Plotting fringe spacing variation against the scattering angle.
- Applying Fourier transform to the scattering intensity data.
- Comparing theoretical models with experimental results.
Main Results:
- Demonstrated a correlation between fringe spacing and scattering angle.
- Successfully implemented Fourier transform for fiber diameter measurement.
- Achieved agreement between theoretical and experimental results for various fiber diameters.
Conclusions:
- The Fourier transform method provides an effective means for measuring optical fiber diameters.
- The study validates the theoretical framework and experimental approach.
- This technique offers a reliable alternative for fiber characterization.
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