Electrically-controlled suppression of Rayleigh backscattering in an integrated photonic circuit [PDF]
NanophotonicsUndesirable light scattering is a 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 subwavelength ...
Örsel Oğulcan E. +2 more
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Optical Systems Identification through Rayleigh Backscattering [PDF]
Sensors, 2023 We introduce a technique to generate and read the digital signature of the networks, channels, and optical devices that possess the fiber-optic pigtails to enhance physical layer security (PLS).
Pantea Nadimi Goki +3 more
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Optical Frequency-Domain Reflectometry Based Distributed Temperature Sensing Using Rayleigh Backscattering Enhanced Fiber [PDF]
Sensors, 2023 An innovative optical frequency-domain reflectometry (OFDR)-based distributed temperature sensing method is proposed that utilizes a Rayleigh backscattering enhanced fiber (RBEF) as the sensing medium.
Ziyi Lu +3 more
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Shape Sensing with Rayleigh Backscattering Fibre Optic Sensor [PDF]
Sensors, 2020 In this paper, Rayleigh backscattering sensors (RBS) are used to realize shape sensing of beam-like structures. Compared to conventional shape sensing systems based on fibre Bragg grating (FBG) sensors, RBS are capable of continuous lateral sensing ...
Cheng Xu, Zahra Sharif Khodaei
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Optical Fiber–Based Continuous Liquid Level Sensor Based on Rayleigh Backscattering [PDF]
Micromachines, 2022 This work reports an optical fiber–based continuous liquid level sensor for cryogenic propellant mass gauging, which has significant advantages over the existing liquid level sensors in terms of accuracy, simplicity, and reliability.
Xingqiang Chi, Xiangjun Wang, Xuan Ke
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Enhanced Optical Fiber for Distributed Acoustic Sensing beyond the Limits of Rayleigh Backscattering [PDF]
iScience, 2020 Summary: We report on engineered fibers with enhanced optical backscattering that exceeds Rayleigh scattering limits by more than one order of magnitude. We measure attenuation less than 0.5 dB/km from 1,300 to 1,650 nm.
Paul S. Westbrook +12 more
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Backscattering-free edge states below all bands in two-dimensional auxetic media [PDF]
Nature CommunicationsUnidirectional and backscattering-free propagation of sound waves is of fundamental interest in physics and highly sought-after in engineering. Current strategies utilize topologically protected chiral edge modes in bandgaps, or complex mechanisms ...
Wenting Cheng +5 more
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Recent Advances in Ultra-Weak Fiber Bragg Gratings Array for High-Performance Distributed Acoustic Sensing (Invited) [PDF]
SensorsDistributed acoustic sensing (DAS) systems have been widely employed in oil and gas resource exploration, pipeline monitoring, traffic and transportation, structural health monitoring, hydrophone usage, and perimeter security due to their ability to ...
Yihang Wang +8 more
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OFDR Distributed Demodulation Optimization Algorithm Using Discrete-Time Analytic Signal Backscattered Rayleigh Spectrum [PDF]
SensorsWe propose a novel distributed demodulation optimization algorithm for optical frequency domain reflectometry (OFDR). This algorithm applies discrete-time analytic (DTA) signals to the Rayleigh backscattered signal (RBS) reconstruction.
Shuaipeng Wang +4 more
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The Impact of Rayleigh Scattering in UWFBG Array-Based Φ-OTDR and Its Suppression Method
Sensors, 2023 Ultra-weak fiber Bragg grating (UWFBG) array-based phase-sensitive optical time-domain reflectometry (Φ-OTDR) utilizes the interference interaction between the reference light and the reflected light from the broadband gratings for sensing.
Feng Wang +5 more
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