Flexible fabrication of long-period in-fiber gratings 1998

L. A. Everall, R. W. Fallon, J. A.R. Williams, L. Zhang, I. Bennion

Research output: Chapter in Book/Report/Conference proceedingConference proceedingpeer-review

10 Citations (Scopus)


A novel, simple low-cost and all-fiber interrogation technique for a strain/temperature fiber Bragg sensor using a long-period grating is demonstrated. The amount of light transmitted by the long-period grating is determined by its wavelength and is therefore proportional to the wavelength of the backreflected light from the fiber Bragg sensor acting as a spectral filter. Over the range 1582-1592 nm, the filter shows a near-linear response of 0.6 dB/nm. This allows an unambiguous sensing range of 10 nm. The additional measurement from the reference arm permits the ratio of the two intensities independent of the optical power fluctuations along the system.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics 1998
EditorsD. Scifres, A. Weiner
PublisherOSA Publishing
Number of pages2
ISBN (Print)1-55752-540-4
Publication statusPublished - 1 Jan 1998
Externally publishedYes
EventConference on Lasers and Electro-Optics, CLEO - San Francisco, United States
Duration: 3 May 19988 May 1998


ConferenceConference on Lasers and Electro-Optics, CLEO
Country/TerritoryUnited States
CitySan Francisco

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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