Study of distributed fiber-optic laser-ultrasound generation based on ghost-mode of tilted fiber Bragg gratings

Jiajun Tian, Qi Zhang, Ming Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Fiber-optic ultrasonic transducers are an important component of an active ultrasonic testing system for structural health monitoring. Fiber-optic transducers have several advantages such as small size, light weight, and immunity to electromagnetic interference that make them much more attractive than the current available piezoelectric transducers, especially as embedded and permanent transducers in active ultrasonic testing for structural health monitoring. In this paper, a distributed fiber-optic laser-ultrasound generation based on the ghost-mode of tilted fiber Bragg gratings is studied. The influences of the laser power and laser pulse duration on the laser-ultrasound generation are investigated. The results of this paper are helpful to understand the working principle of this laser-ultrasound method and improve the ultrasonic generation efficiency.

Original languageEnglish (US)
Title of host publicationFiber Optic Sensors and Applications X
DOIs
StatePublished - 2013
EventFiber Optic Sensors and Applications X - Baltimore, MD, United States
Duration: May 2 2013May 3 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8722
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceFiber Optic Sensors and Applications X
CountryUnited States
CityBaltimore, MD
Period5/2/135/3/13

Keywords

  • Fiber Bragg gratings
  • Laser-ultrasound generation
  • Ultrasonic testing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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