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Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
X-ray Crystallography02:18

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Related Experiment Video

Updated: Jun 22, 2026

Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
08:28

Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers

Published on: September 4, 2017

Diffraction in air-clad fibres.

M Aslund, J Canning, S Jackson

    Optics Express
    |June 6, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Angular transmissivity in high numerical aperture air-clad fibers was measured. Skew ray transmissivity was lower than predicted, likely due to diffractive losses from surface corrugations.

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    Microfluidic Dry-spinning and Characterization of Regenerated Silk Fibroin Fibers
    08:28

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    Published on: September 4, 2017

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • High numerical aperture (NA) optical fibers are crucial for light delivery and sensing applications.
    • Air-clad fibers offer unique properties but their performance can be affected by surface imperfections.
    • Understanding light propagation, especially for skew rays, is essential for optimizing fiber performance.

    Purpose of the Study:

    • To experimentally measure the angular transmissivity of high NA air-clad fibers.
    • To investigate the impact of light skewness on fiber transmissivity.
    • To identify the reasons for discrepancies between experimental results and theoretical predictions.

    Main Methods:

    • Experimental measurement of angular transmissivity using a high NA air-clad fiber.
    • Varying the skewness of the launched light to observe its effect.
    • Comparison of experimental data with theoretical models for uniform cladding surfaces.

    Main Results:

    • Measured transmissivity of skew rays was significantly lower than theoretical predictions for uniform surfaces.
    • A notable discrepancy was observed within experimental limits.
    • The findings suggest additional loss mechanisms are at play.

    Conclusions:

    • Periodic corrugations at the pump core-cladding air interface cause diffractive losses for skew rays.
    • These diffractive losses explain the lower-than-predicted transmissivity.
    • Optimizing cladding surface uniformity is critical for maximizing light transmission in air-clad fibers.