6533b85efe1ef96bd12c07d0
RESEARCH PRODUCT
Measurement of temperature profile induced by the optical signal in fiber Bragg gratings using whispering-gallery modes.
Antonio DiezI. L. VillegasMiguel V. AndrésJose L. CruzMartina Delgado-pinarsubject
PHOSFOSMaterials sciencebusiness.industryPhysics::OpticsPolarization-maintaining optical fiberLong-period fiber gratingAtomic and Molecular Physics and OpticsOpticsFiber Bragg gratingFiber optic sensorDispersion-shifted fiberOptoelectronicsPlastic optical fiberbusinessPhotonic-crystal fiberdescription
The temperature sensitivity of whispering-gallery mode resonances of an optical fiber is exploited to measure thermal effects induced by an optical signal of moderate power along a fiber Bragg gating (FBG). The UV inscription technique used for the fabrication of FBG introduces a permanent change in the absorption coefficient of the fiber; thus, thermal effects are expected. The resonance wavelength shift of whispering-gallery modes provides information about the temperature change in the fiber, point to point. We present the experimental characterization of the thermal effects in FBG as a function of the wavelength and the power of the launched optical signal through the grating.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-10-27 | Optics letters |