Fiber Bragg-grating incorporated microbend sensor for simultaneous mechanical parameter and temperature measurement

Lei Su, Kin Seng Chiang, Chao Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

We propose a compact microbend sensor operating in the reflection mode for simultaneous measurement of a mechanical parameter and the temperature. The sensor is composed of a single-mode fiber lead, a multimode sensing fiber, and a single-mode fiber Bragg grating, where microbending is applied to the multimode fiber for mechanical parameter measurement and the grating provides an additional signal for temperature measurement. The sensor is demonstrated experimentally with two demodulation schemes based on a broad-band source and a tunable laser, respectively. The sensor extends the capacity of a conventional microbend sensor and offers many additional advantages, including higher stability, higher sensitivity, single-end access, and superior multiplexing capability.
Original languageEnglish
Pages (from-to)2697-2699
Number of pages3
JournalIEEE Photonics Technology Letters
Volume17
Issue number12
DOIs
Publication statusPublished - 1 Dec 2005
Externally publishedYes

Keywords

  • Fiber Bragg grating (FBG)
  • Fiber-optic sensor
  • Microbend sensor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

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