Spectral characteristics of tapered LPG device as a sensing element for refractive index and temperature

Thomas D.P. Allsop*, Filip Floreani, K.P. Jedrzejewski, P.V.S. Marques, R. Romero, David J. Webb, Ian Bennion

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The fabrication and characterization of long-period gratings (LPGs) in fiber tapers is presented alongside supporting theory. The devices possess a high sensitivity to the index of aqueous solutions due to an observed spectral bifurcation effect, yielding a limiting index resolution of ±8.5 × 10-5 for solutions with an index in the range 1.330-1.335. © 2006 IEEE.

Original languageEnglish
Pages (from-to)870-878
Number of pages9
JournalJournal of Lightwave Technology
Volume24
Issue number2
DOIs
Publication statusPublished - Feb 2006

Keywords

  • long-period fiber gratings
  • optical fiber devices
  • optical fiber tapers
  • refractive-index measurement
  • temperature measurement

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