Results 11 to 20 of about 2,469 (206)
Theoretical analysis of backscattering in hollow-core antiresonant fibers
APL Photonics, 2021 We present a theoretical analysis into the fundamental physical mechanisms contributing to backscattering in hollow-core antiresonant fibers. We consider Rayleigh scattering originating from the hollow regions of the fiber, which may be filled with gases,
Eric Numkam Fokoua +4 more
doaj +2 more sources
SHM of Reinforced Concrete Elements by Rayleigh Backscattering DOFS [PDF]
Frontiers in Built Environment, 2019 This document showcases the latest research conducted within UPC–BarcelonaTech on the performance of distributed optical fiber sensors (DOFS), more specifically the case of the optical backscattered reflectometry (OBR) system, in the structural health ...
António Barrias +2 more
doaj +4 more sources
Characterization of Rayleigh backscattering arising in various two-mode fibers [PDF]
Optics Express, 2016 We experimentally characterize the mode dependent characteristics of Rayleigh backscattering (RB) arising in various two-mode fibers (TMFs). With the help of an all-fiber photonic lantern, we are able to measure the RB power at individual modes ...
Fu, S Songnian +17 more
core +3 more sources
Applied Sciences, 2019 In this work, a record of 16 channels, with future channel spacing in the telecommunication standardization sector of the International Telecommunications Union G.694.1 (ITU-T G.694.1) for Dense Wavelength Division Multiplexing (DWDM) (i.e., 12.5 GHz ...
Nazmi A. Mohammed, Ahmed Hamdi Mansi
doaj +2 more sources
Spectrum evolution of Rayleigh backscattering in one-dimensional waveguide
Opto-Electronic Advances, 2019 Despite the tremendous awareness of Rayleigh scattering characteristics and its considerable research interest for numerous fields, no report has been documented on the dynamic characteristics of spectrum evolution (SpE) and physical law for Rayleigh ...
Li Fuhui +5 more
doaj +2 more sources
Limitation of rotation sensing in IORG by Rayleigh backscattering noise
EPL (Europhysics Letters), 2011 Rayleigh backscattering noise (RBN) in integrated optical resonance gyroscope (IORG) is theoretically and experimentally researched. The SiO2 waveguide resonator performance degradation of IORG due to RBN is analyzed firstly, and then the nonlinear ...
L. Hong +4 more
core +2 more sources
Distributed Optical Fiber Sensors with Ultrafast Laser Enhanced Rayleigh Backscattering Profiles for Real-Time Monitoring of Solid Oxide Fuel Cell Operations. [PDF]
Sci Rep, 2017 This paper reports a technique to enhance the magnitude and high-temperature stability of Rayleigh back-scattering signals in silica fibers for distributed sensing applications.
Yan A +8 more
europepmc +2 more sources
Scientific Reports, 2023 In this paper, we present the results of lab and pilot-scale testing of a continuously enhanced backscattering, or Rayleigh enhanced fiber cable that can improve distributed acoustic sensing performance.
Nageswara Lalam +7 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
Electrically-Controlled Suppression of Rayleigh Backscattering in an Integrated Photonic Circuit
, 2023 Undesirable light scattering is an important fundamental cause for photon loss in nanophotonics. Rayleigh backscattering can be particularly difficult to avoid in wave-guiding systems and arises from both material defects and geometric defects at the ...
Jiho Noh (14357895) +2 more
core +2 more sources