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Related Concept Videos

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.

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Related Experiment Video

Updated: Jun 19, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Strain effects on two-mode fiber gratings.

Y W Koh, S H Yun, B Y Kim

    Optics Letters
    |October 6, 2009
    PubMed
    Summary

    Mode-coupling fiber gratings exhibit unique spectral, interferometric, and polarization properties when strained. These characteristics enable applications in optical switches, tunable filters, and sensors.

    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Fiber gratings are crucial optical components.
    • Mode-coupling in optical fibers offers unique light manipulation properties.

    Purpose of the Study:

    • To investigate the spectral, interferometric, and polarization properties of mode-coupling fiber gratings under strain.
    • To explore the potential applications of these gratings.

    Main Methods:

    • Fabrication of mode-coupling fiber gratings using photosensitivity and modal interference in a two-mode fiber.
    • Theoretical analysis and experimental characterization of grating properties under applied strain.

    Main Results:

    • Detailed description of the spectral, interferometric, and polarization responses to strain.

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    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

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    Last Updated: Jun 19, 2026

    Writing Bragg Gratings in Multicore Fibers
    08:48

    Writing Bragg Gratings in Multicore Fibers

    Published on: April 20, 2016

    Fabrication and Testing of Microfluidic Optomechanical Oscillators
    09:10

    Fabrication and Testing of Microfluidic Optomechanical Oscillators

    Published on: May 29, 2014

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

    Published on: September 30, 2019

  • Demonstration of strain-induced changes in light propagation characteristics.

    • Conclusions:

    • Mode-coupling fiber gratings exhibit tunable properties under strain.
    • These gratings are promising for developing advanced optical devices such as switches, filters, and sensors.