Results 11 to 20 of about 1,333 (177)
Brillouin lasing in single-mode tapered optical fiber with inscribed fiber Bragg grating array [PDF]
Results in Physics, 2018 A tapered optical fiber has been manufactured with an array of fiber Bragg gratings (FBG) inscribed during the drawing process. The total fiber peak reflectivity is 5% and the reflection bandwidth is ∼3.5 nm. A coherent frequency domain reflectometry has
S.M. Popov +12 more
doaj +2 more sources
Bragg Grating Waveguide Array Ultrafast Laser Inscribed into the Cladding of a Flat Fiber [PDF]
MATEC Web of Conferences, 2013 We report the fabrication and initial characterization of a waveguide sensor array in the cladding of a flat fiber. The sensor, designed to independently measure the strain on three Bragg grating waveguides, exploits the true three dimensional ...
Beecher Stephen J. +5 more
doaj +2 more sources
Multimode Graded Index Fiber with Random Array of Bragg Gratings and Its Raman Lasing Properties [PDF]
Fibers, 2023 Light propagation in multimode fibers is known to experience various nonlinear effects, which are being actively studied. One of the interesting effects is the brightness enhancement at the Raman conversion of the multimode beam in graded index (GRIN ...
Alexey G. Kuznetsov +4 more
doaj +2 more sources
Photonics, 2022 A random narrow-linewidth lasing at a wavelength of 976 nm was obtained in an ytterbium-doped germanophosphosilicate fiber with an array of weakly reflecting fiber Bragg gratings (FBGs). A random laser cavity was formed by implementing the standard phase
Andrey Rybaltovsky +10 more
doaj +1 more source
Random lasing in a short Er-doped artificial Rayleigh fiber
Results in Physics, 2020 We report on random lasing observed with 5-m-long Er-doped fiber comprising an array of weak fiber Bragg gratings (FBGs) inscribed in the fiber core and uniformly distributed over the whole fiber length.
S.M. Popov +5 more
doaj +1 more source
Infrastructures, 2022 Structural health monitoring of highway bridges is a vital but currently challenging aspect of infrastructure engineering due to the number of sensors required, power requirements, and harsh environmental conditions.
Renxiang Lu, Johnn Judd
doaj +1 more source
Taking Flow Characterization to New Heights by Fiber Bragg Gratings Array
Energies, 2023 With global warming increasing at a faster rate in recent decades than at any other moment in recorded history, nuclear power, among a wide range of energy-efficient technologies, has been identified as the primary energy source in decarbonization for ...
Jinfeng Li
doaj +1 more source
Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]
, 2006 Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K. +2 more
core +1 more source
Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser [PDF]
, 2005 A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H +2 more
core +1 more source
Scientific Reports, 2022 We propose an efficient method to determine the effective refractive index of step-index optical fibers from the visible to the mid-IR and thus allowing to infer their dispersive properties over a broad spectral range.
Tommy Boilard +2 more
doaj +1 more source