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

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

2007-08-31

arxiv.org/abs/0708.4382v1

Physics

Optics

17 pages, 16 figures

Scientific paper

10.1364/JOSAB.25.000310

We study the sensitivity of fiber grating sensors in the applications of strain, temperature, internal label-free biosensing, and internal refractive index sensing. It is shown that optical dispersion plays a central role in determining the sensitivity, and the 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 LPGs.

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