Open AccessSensitivity of photonic crystal fiber modes to temperature, strain and external refractive index
Author(s) -
Chengkun Chen,
Albane Laronche,
Géraud Bouwmans,
Laurent Bigot,
Yves Quiquempois,
Jacques Albert
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.009645
Subject(s) - photonic crystal fiber , materials science , optics , refractive index , fiber bragg grating , graded index fiber , normalized frequency (unit) , mode volume , photonic crystal , optical fiber , narrowband , core (optical fiber) , optoelectronics , single mode optical fiber , fiber optic sensor , physics , phase locked loop , frequency synthesizer , phase noise
Several strong narrowband resonances are observed in the transmission spectra of fiber Bragg gratings photo-written in photonic crystal fiber that has a refractive index-neutral germanium/fluorine co-doped core. Experimental results for the strain, temperature and refractive index sensitivities of these mode resonances are reported and compared to those of conventional single mode fiber. In particular, we identify three kinds of resonances whose relative sensitivities to strain, temperature and refractive index are markedly different and present numerical simulations to explain these properties. Potential multiparameter optical sensor applications of these mode resonances are briefly discussed.