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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Sensitivity of photonic crystal fiber grating sensors: biosensing, refractive index, strain, and temperature sensing

Lars Rindorf and Ole Bang  »View Author Affiliations

JOSA B, Vol. 25, Issue 3, pp. 310-324 (2008)

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We study the sensitivity of fiber grating sensors in the applications of strain, temperature, internal label-free biosensing, and internal refractive index sensing. New analytical expressions for the sensitivities, valid for photonic crystal fibers are rigorously derived. These are generally valid, and we identify a previously unaccounted term for temperature and strain sensing. It is shown that dispersion plays a central role in determining the sensitivity, and that dispersion may enhance or suppress sensitivity as well as change the sign of the resonant wavelength shifts. We propose a quality factor, Q, for characterizing long period gratings sensors.

© 2008 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.4005) Fiber optics and optical communications : Microstructured fibers
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Photonic Crystals

Original Manuscript: August 10, 2007
Manuscript Accepted: November 19, 2007
Published: February 13, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Lars Rindorf and Ole Bang, "Sensitivity of photonic crystal fiber grating sensors: biosensing, refractive index, strain, and temperature sensing," J. Opt. Soc. Am. B 25, 310-324 (2008)

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