Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Intrinsic fiber-optic ultrasonic sensor array using multiplexed two-wave mixing interferometry.

Pavel Fomitchov1, Todd W Murray, Sridhar Krishnaswamy

  • 1Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, Illinois 60208-3020, USA.

Applied Optics
|March 20, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of stress and temperature on zero group velocity Lamb modes.

The Journal of the Acoustical Society of America·2026
Same author

3D printed near-infrared high-numerical aperture achromatic metalens.

iScience·2025
Same author

Characterization and Inverse Design of Stochastic Mechanical Metamaterials Using Neural Operators.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

High-Q Emission from Colloidal Quantum Dots Embedded in Polymer Quasi-BIC Metasurfaces.

Nano letters·2025
Same author

Hydrophobically Modified Silica-Coated Gold Nanorods for Generating Nonlinear Photoacoustic Signals.

ACS applied nano materials·2023
Same author

Two-photon 3D printing diaphragm-integrated ring waveguide coupler for ultrasound detection.

Optics letters·2023

This study introduces an intrinsic multiplexed laser interferometer for simultaneous acoustic wave detection using fiber-optic sensors. The adaptive system effectively demodulates signals from large sensor arrays without active stabilization.

Area of Science:

  • Optoelectronics
  • Photonics
  • Materials Science

Background:

  • Fiber-optic sensors offer sensitive detection capabilities.
  • Multiplexing techniques are crucial for large-scale sensor networks.
  • Adaptive optics can mitigate environmental noise in optical systems.

Purpose of the Study:

  • To present an intrinsic multiplexed laser interferometer for simultaneous acoustic wave detection.
  • To demonstrate the system's capability in demodulating signals from an array of fiber-optic sensors.
  • To validate the system's performance in composite materials.

Main Methods:

  • Utilizing an adaptive two-wave mixing setup for phase-modulated signal demodulation.
  • Employing a single photorefractive crystal (PRC) to mix light from sensing fibers with a reference beam.

Related Experiment Videos

  • Developing a multiplexed two-wave mixing (MTWM) system by imaging output beams onto separate photodetectors.

    • Main Results:

    • Simultaneous detection of acoustic emission and ultrasonic signals in graphite-epoxy composite panels.
    • Demonstrated effective demodulation of signals from a large fiber sensor array.
    • The adaptive MTWM setup successfully obviated the need for active stabilization against ambient noise.

    Conclusions:

    • The intrinsic MTWM system is an effective tool for simultaneous signal demodulation from extensive fiber sensor arrays.
    • The adaptive nature of the system provides robust performance against environmental disturbances.
    • This technology shows promise for structural health monitoring and acoustic sensing applications.