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Related Experiment Video

Updated: Jun 19, 2026

Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)
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Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)

Published on: August 5, 2009

Phase stepping in fiber-based speckle shearing interferometry.

J D Valera, J D Jones

    Optics Letters
    |October 22, 2009
    PubMed
    Summary
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    This study introduces an optical-fiber interferometer for measuring out-of-plane displacement derivatives. The novel technique uses fiber optics and phase stepping for precise, non-mechanical measurements.

    Area of Science:

    • Optics and Photonics
    • Optical Metrology
    • Fiber Optic Sensors

    Background:

    • Interferometry is crucial for precise displacement measurements.
    • Traditional methods often require mechanical components for phase stepping.
    • Measuring displacement derivatives is essential for stress analysis.

    Purpose of the Study:

    • To describe a new optical-fiber-based speckle shearing interferometer.
    • To enable out-of-plane displacement derivative measurement.
    • To achieve phase stepping without mechanical movement.

    Main Methods:

    • Utilizing a highly birefringent optical fiber for illumination.
    • Employing orthogonally polarized light.
    • Implementing phase stepping via strain modulation of polarization states.

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    Last Updated: Jun 19, 2026

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)
    19:16

    Live Cell Imaging of F-actin Dynamics via Fluorescent Speckle Microscopy (FSM)

    Published on: August 5, 2009

    Implementation of a Reference Interferometer for Nanodetection
    16:11

    Implementation of a Reference Interferometer for Nanodetection

    Published on: April 26, 2014

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

  • Using a Wollaston prism for adjustable image shear.

    • Main Results:

    • Demonstration of an optical-fiber speckle shearing interferometer.
    • Successful out-of-plane displacement derivative measurement.
    • Achieved readily phase-stepped measurements without mechanical parts.

    Conclusions:

    • The developed interferometer offers a non-mechanical approach for displacement derivative measurement.
    • Fiber optic technology enables efficient and precise optical metrology.
    • This technique has potential applications in non-destructive testing and material analysis.