Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por tema "Gratings"
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Etched LPFGs in reflective configuration for sensitivity and attenuation band depth increase
A reflection configuration setup for long-period fiber gratings is presented. It permits to obtain a unique band with attenuation double than that obtained in transmission configuration, which is interesting for ... -
Fiber-optic nanorefractometer based on one-dimensional photonic-bandgap structures with two defects
A theoretical analysis of a fiber-optic photonic- bandgap (PBG)-based nanorefractometer is presented. Changes up to 11.2 dB in the optical output power in an index of refraction range of 1.7 with a sensitivity of 1.5 ... -
Fringe generation with non-uniformly coated long-period fiber gratings
In this work, the spectral characteristics of non-uniform symmetrically ring shaped coatings deposited on long-period fiber gratings (LPFGs) have been theoretically and experimentally investigated. To optimize the ... -
Long period fiber gratings with overlay of variable refractive index
A theoretical analysis is presented of a long-period fiber grating (LPFG) with an overlay of variable refractive index. The highest sensitivity of the resonance wavelengths to variations in the refractive index of the ... -
Spectral evolution with incremental nanocoating of long period fiber gratings
The incremental deposition of a thin overlay on the cladding of a long-period fiber grating (LPFG) induces important resonance wavelength shifts in the transmission spectrum. The phenomenon is proved theoretically with ...