Results 11 to 20 of about 11,441 (205)
Single-photon detector-based long-distance Brillouin optical time domain reflectometry [PDF]
EPJ Web of Conferences, 2023 We present a long-range Brillouin optical time domain reflectometer (BOTDR) based on photon counting technology. We demonstrate experimentally the ability to perform a distributed temperature measurement, by detecting a hot spot in a thermal bath at 100 ...
Romanet Maxime +3 more
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Phase-Sensitive Optical Time Domain Reflectometry With Rayleigh Enhanced Optical Fiber
IEEE Access, 2021 In this paper, a phase-sensitive optical time domain reflectometry ( $\Phi $ -OTDR) based on Rayleigh enhanced optical fiber is proposed to improve the system signal-to-noise ratio (SNR).
Nageswara Lalam +4 more
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Advances in phase-sensitive optical time-domain reflectometry
Opto-Electronic Advances, 2022 Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has attracted numerous attention due to its superior performance in detecting the weak perturbations along the fiber.
Shuaiqi Liu +5 more
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Optical Frequency Domain Reflectometry Based on Multilayer Perceptron
Sensors, 2023 We proposed an optical frequency domain reflectometry based on a multilayer perceptron. A classification multilayer perceptron was applied to train and grasp the fingerprint features of Rayleigh scattering spectrum in the optical fiber.
Guolu Yin +6 more
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Recent Advances in Phase-Sensitive Optical Time Domain Reflectometry (Ф-OTDR)
Photonic Sensors, 2021 Phase-sensitive optical time domain reflectometry (Ф-OTDR) is an effective way to detect vibrations and acoustic waves with high sensitivity, by interrogating coherent Rayleigh backscattering light in sensing fiber. In particular, fiber-optic distributed
Yunjiang Rao +4 more
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Principle and Application of the C-OTDR
Guangtongxin yanjiu, 2022 The traditional Optical Time Domain Reflectometry (OTDR) technology uses back Rayleigh scattering power for fiber detection. In transmission lines with optical amplifier, Erbium-Doped Fiber Amplifiers (EDFA) are mostly used to compensate for the loss of ...
LIU Zhong-hua +3 more
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Analyzing Distributed Vibrating Sensing Technologies in Optical Meshes
Micromachines, 2022 Hundreds of kilometers of optical fibers are installed for optical meshes (OMs) to transmit data over long distances. The visualization of these deployed optical fibers is a highlighted issue because the conventional procedure can only measure the ...
Saifur Rahman +9 more
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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
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Modulation instability-induced fading in phase-sensitive optical time-domain reflectometry [PDF]
, 2013 Phase-sensitive optical time-domain reflectometry (?OTDR) is a simple and effective tool allowing the distributed monitoring of vibrations along single-mode fibers.
Corredera Guillén, Pedro +5 more
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Recent Advancements in Rayleigh Scattering-Based Distributed Fiber Sensors
Advanced Devices & Instrumentation, 2021 Recently, Rayleigh scattering-based distributed fiber sensors have been widely used for measurement of static and dynamic phenomena such as temperature change, dynamic strain, and sound waves.
Xiaoyi Bao, Yuan Wang
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