Results 11 to 20 of about 14,728 (161)
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
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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
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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
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Stable Triple-Wavelength Random Fiber Laser Based on Fiber Bragg Gratings
Photonics, 2023 We demonstrate a generation of three lasing wavelengths with the assistance of Rayleigh backscattering as the stabilizer of peak power variations. The proposed laser consists of a combination of the semiconductor optical amplifier (SOA) and erbium-doped ...
Airull Azizi Awang Lah +7 more
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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
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Sensors, 2022 This paper presents the measurement methodology of diameter reduction monitoring of micro-tunnel structures used for radioactive waste storage based on distributed strain measurements along fiber optic sensors installed on the circumference.
Arianna Piccolo +5 more
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Passive manipulation of low resonance scattering frequency associated with subsonic Rayleigh waves on submerged polymer spheres [PDF]
MATEC Web of Conferences, 2019 Observation of the backscattering form function for a solid polymethylmeth-acrylate(PMMA) sphere reveals a significant enhancement at low frequencies, which is associated with the subsonic Rayleigh waves resonance.
Zhou Yanling, Fan Jun, Wang Bin
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Performance Study of a Zirconia-Doped Fiber for Distributed Temperature Sensing by OFDR at 800 °C
Sensors, 2021 Optical Frequency Domain Reflectometry (OFDR) is used to make temperature distributed sensing measurements along a fiber by exploiting Rayleigh backscattering. This technique presents high spatial and high temperature resolutions on temperature ranges of
Patrick Bulot +4 more
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Applied Sciences, 2021 We propose a weighted singular value decomposition (WSVD) to reduce the random noise in the Rayleigh backscattering signal of the phase-sensitive optical time domain reflectometry (Φ-OTDR) to enhance the detection performance of the distributed vibration
Khurram Naeem +3 more
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Weak localization of light by cold atoms: the impact of quantum internal structure [PDF]
, 2001 Since the work of Anderson on localization, interference effects for the propagation of a wave in the presence of disorder have been extensively studied, as exemplified in coherent backscattering (CBS) of light.
A. A. Golubentsev +45 more
core +3 more sources