Ultra-Long-Distance Hybrid BOTDA/Ф-OTDR
Sensors, 2018 In the distributed optical fiber sensing (DOFS) domain, simultaneous measurement of vibration and temperature/strain based on Rayleigh scattering and Brillouin scattering in fiber could have wide applications.
Yun Fu +9 more
doaj +1 more source
Combined Radiation and Temperature Effects on Brillouin-Based Optical Fiber Sensors
Photonics, 2023 The combined effects of temperature (from −80 °C to +80 °C) and 100 kV X-ray exposure (up to 108 kGy(SiO2)) on the physical properties of Brillouin scattering and losses in three differently doped silica-based optical fibers, with varying dopant type and
Jérémy Perrot +6 more
doaj +1 more source
Stimulated Brillouin scattering modeling for high-resolution, time-domain distributed sensing
Optics Express, 2007 Starting from the standard three-wave SBS coupled equations, we derive a novel expression describing Brillouin interaction between a pulsed pump wave with a finite cw component, and a Stokes continuous wave counter-propagating along a single-mode optical fiber.
BERNINI R., MINARDO, Aldo, ZENI, Luigi
openaire +6 more sources
Sensors, 2017 A useful method for eliminating the detrimental effect of laser frequency instability on Brillouin signals by employing the self-heterodyne detection of Rayleigh and Brillouin scattering is presented.
Yongqian Li +3 more
doaj +1 more source
Review: optical fiber sensors for civil engineering applications [PDF]
, 2013 Optical fiber sensor (OFS) technologies have developed rapidly over the last few decades, and various types of OFS have found practical applications in the field of civil engineering. In this paper, which is resulting from the work of the RILEM technical
B Poumellec +64 more
core +2 more sources
Brillouin Scattering Spectrum Analysis Based on Auto-Regressive Spectral Estimation
Photonic Sensors, 2018 Auto-regressive (AR) spectral estimation technology is proposed to analyze the Brillouin scattering spectrum in Brillouin optical time-domain refelectometry.
Mengyun Huang +4 more
doaj +1 more source
Single-end hybrid Rayleigh Brillouin and Raman distributed fibre-optic sensing system
Light: Advanced Manufacturing, 2023 Backscattered lightwaves from an optical fibre are used to realise distributed fibre optic sensing (DFOS) systems for measuring various parameters. Rayleigh, Brillouin, and Raman backscattering provide different sensitivities to different measurands and ...
Linjing Huang +4 more
doaj +1 more source
Probe pulse design in Brillouin optical time‐domain reflectometry
IET Optoelectronics, 2022 Brillouin optical time‐domain reflectometry (BOTDR) is a branch of distributed fibre‐optic sensors, and it can measure the strain and the temperature information, localised by the return time of the probe pulse, along the fibre based on the spontaneous ...
Mupeng Li +5 more
doaj +1 more source
Time-domain Brillouin imaging of sound velocity and refractive index using automated angle scanning
Photoacoustics, 2023 We present a picosecond optoacoustic technique for mapping both the longitudinal sound velocity v and the refractive index n in solids by automated measurement at multiple probe incidence angles in time-domain Brillouin scattering.
Motonobu Tomoda +4 more
doaj +1 more source
Background-deflection Brillouin microscopy reveals altered biomechanics of intracellular stress granules by ALS protein FUS [PDF]
, 2018 Altered cellular biomechanics have been implicated as key photogenic triggers in age-related diseases. An aberrant liquid-to-solid phase transition, observed in in vitro reconstituted droplets of FUS protein, has been recently proposed as a possible ...
Antonacci, Giuseppe +3 more
core +3 more sources