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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 1 — Jan. 3, 2011

Three-parameter optical fiber sensor based on a tilted fiber Bragg grating

Nélia J. Alberto, Carlos A. Marques, João L. Pinto, and Rogério N. Nogueira  »View Author Affiliations


Applied Optics, Vol. 49, Issue 31, pp. 6085-6091 (2010)
http://dx.doi.org/10.1364/AO.49.006085


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Abstract

A three-parameter optical sensor based on a tilted fiber Bragg grating is proposed. Through the monitoring of the wavelength shift of the core mode resonance and the ghost mode resonance, it is possible to discriminate strain and temperature. In addition, the refractive index can be determined by calculating the normalized transmission spectrum area. With the current approach, resolutions of up to 5.7 × 10 4 , 4 με , and 3.1 ° C were achieved, for refractive index, strain, and temperature, respectively. The developed sensor can be an important tool in several areas of engineering, namely, biomedical, biological, and environmental sensing.

© 2010 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 7, 2010
Revised Manuscript: September 29, 2010
Manuscript Accepted: October 1, 2010
Published: October 27, 2010

Virtual Issues
Vol. 6, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Nélia J. Alberto, Carlos A. Marques, João L. Pinto, and Rogério N. Nogueira, "Three-parameter optical fiber sensor based on a tilted fiber Bragg grating," Appl. Opt. 49, 6085-6091 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-49-31-6085


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