6814 Suchergebnisse für: „“
Advanced fabrication and calibration of high-temperature sensor elements based on sapphire fiber Bragg gratings
In this paper, improved fabrication and calibration techniques of Fiber Bragg Gratings (FBG) for very high temperature sensing applications up to more than 1500 °C will be presented. The fibers used are...
PublikationenFocused ion beam post-processing of optical fiber Fabry-Perot cavities for sensing applications
Focused ion beam technology is combined with chemical etching of specifically designed fibers to create Fabry-Perot interferometers. Hydrofluoric acid is used to etch special fibers and create microwires...
PublikationenMidinfrared frequency combs from coherent supercontinuum in chalcogenide and optical parametric oscillation
We observe the coherence of the supercontinuum generated in a nanospike chalcogenide-silica hybrid waveguide pumped at 2 μm. The supercontinuum is shown to be coherent with the pump by interfering it...
PublikationenFiber Bragg gratings in hydrogen-loaded photosensitive fiber with two regeneration regimes
In a highly Ge-doped photosensitive fiber co-doped with phosphorus and fluorine and with a doped inner cladding, we observed, during annealing experiments, an anomalous variation of the FBG strength as...
PublikationenOptical Inclinometer Based on a Phase-Shifted Bragg Grating in a Taper Configuration
A simple optical inclinometer based on a phase-shifted Bragg grating in a taper configuration is proposed. Two phase-shifted fiber Bragg gratings were fabricated using a DUV femtosecond laser technique...
PublikationenNonlinear-optical response of silicon nanowire arrays: third-harmonic generation and coherent anti-Stokes Raman scattering
We report on nonlinear-optical study of the silicon nanowire arrays by means of the third-harmonic generation and coherent anti-Stokes Raman scattering techniques, which demonstrated the enhancement of...
PublikationenEvaluation of cytotoxicity, photoluminescence and bioimaging properties of nanoparticles of nanoparticle suspensions prepared from nonporous and porous silicon nanowires
Cytotoxicity, photoluminescence (PL) and bio-imaging properties of silicon nanoparticles prepared from nonpo-rous (LD) and porous (HD) silicon nanowires (SiNWs) have been investigated. Samples of LD-SiNWs...
PublikationenFiber Bragg gratings in hole-assisted multicore fiber for space division multiplexing
In this paper we present, for the first time to our knowledge, the results of fiber Bragg grating inscription in a novel microstructured multicore fiber characterized by seven single mode and low crosstalk...
PublikationenOptical Phase Refractometer Based on Post-Processed Interferometric Tip Sensors
An ultra-high sensitive strain sensor is proposed. The sensing head, based on the post-processing of a fiber Bragg grating, is used to perform passive and active strain measurements. Both wavelength and...
PublikationenAccelerated lifetime testing of fused silica for deep ultraviolet laser applications revised
We report on the continuation of a comparative study of different fused silica materials for ArF laser applications. After selecting potentially suited fused silica materials from their laser induced absorption...
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