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).
Luca Poti +2 more
exaly +6 more sources
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 ...
Zahra Sharif Khodaei
exaly +8 more sources
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 ...
Gaurav Bahl, Jiho Noh
exaly +6 more sources
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.
Xuan Ke, Xingqiang Chi, Wang Xiangjun
exaly +4 more sources
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.
Ting Feng, Feng Ting
exaly +4 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 ...
Antonio Barrias +2 more
exaly +5 more sources
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
doaj +2 more sources
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
doaj +2 more sources
Applied Sciences (Switzerland), 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
exaly +3 more sources
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
doaj +2 more sources