Sensitivity of photonic crystal fiber modes to temperature, strain and external refractive index.
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.
Department of Electronics, Carleton University, 1125 Colonel By Drive, Ottawa K1S5B6, Canada. chengkun.chen@gmail.com
Chengkun
C
Chen
Albane
A
Laronche
Géraud
G
Bouwmans
Laurent
L
Bigot
Yves
Y
Quiquempois
Jacques
J
Albert
D003198:Computer Simulation; D003460:Crystallization / Q000379:methods; D004548:Elasticity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005857:Germanium / Q000737:chemistry*; D008027:Light; D008962:Models, Theoretical; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D013696:Temperature
D005857:Germanium