Results 21 to 30 of about 2,469 (206)
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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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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Another look at the Rayleigh angle backscattering [PDF]
The Journal of the Acoustical Society of America, 1987 The increased backscattering from a liquid-solid interface at the Rayleigh angle is a well-known indication of leaky surface wave generation (similar phenomena were observed from thin plates immersed in liquid due to leaky Lamb wave generation, too). This simple technique has proved to be very useful in material evaluation via measuring both surface ...
Peter B. Nagy, Laszlo Adler
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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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Studying the Double Rayleigh Backscattering Noise Effect on Fiber-Optic Radio Frequency Transfer
IEEE Photonics Journal, 2021 We report the effect of the double Rayleigh backscattering (DRB) noise, in which the interference of the signal light with the double Rayleigh backscattered light, on the fiber-optic radio-frequency (RF) transfer system.
Qi Li +3 more
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Remote Sensing, 2023 The backscattering coefficient σ0 of a rice field is closely related to the amplitude, power, and phase of its radar backscattered signals. An investigation of the statistics of indoor full-polarization scatterometric and synthetic aperture radar (SAR ...
Xiangchen Liu +5 more
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A new lidar inversion method using a surface reference target applied to the backscattering coefficient and lidar ratio retrievals of a fog-oil plume at short range [PDF]
Atmospheric Measurement Techniques, 2020 In this paper, a new elastic lidar inversion equation is presented. It is based on the backscattering signal from a surface reference target (SRT) rather than that from a volumetric layer of reference (Rayleigh molecular scatterer) as is usually done ...
F. Gaudfrin +6 more
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Monte Carlo simulation of coherent effects in multiple scattering [PDF]
, 2005 Using a combination of the stochastic Monte Carlo technique and the iteration procedure of the solution to the Bethe-Salpeter equation, it has been shown that the simulation of the optical path of a photon packet undergoing an nth scattering event ...
Churmakov, D. Y. +3 more
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