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Optical Fiber Distributed Acoustic Sensors: A Review
Journal of Lightwave Technology, 2021Fiber-optic distributed acoustic sensor (DAS) is one of the most attractive and promising fiber-optic sensing technologies in the recent decade. It can simultaneously detect and retrieve multiple vibrations over a long distance, and the high sampling ...
Zuyuan He, Qingwen Liu
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Pattern Recognition for Distributed Optical Fiber Vibration Sensing: A Review
IEEE Sensors Journal, 2021In recent years, pattern recognition technologies for distributed optical fiber vibration sensing have attracted more and more attention, aiming to intelligently recognize vibration events along with the optical fiber.
Junchan Li +6 more
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Diaphragm-Embedded Optical Fiber Sensors: A Review and Tutorial
IEEE Sensors Journal, 2021In this article, we thoroughly discuss many aspects of diaphragm-embedded optical fiber sensors covering industrial, robotics and medical applications: from the modeling to field applications, which also include sensor fabrication (such as ...
A. Leal-Junior, C. Marques
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Optical Fibers and Optical Fiber Assemblies
Review of Optical Manufacturing 2000 to 2020, 2021Devinder Saini +2 more
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IFAC Proceedings Volumes, 1979
Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
R.W. Shorthill, G.J. Morris, L.D. Weaver
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Abstract With the development of low loss single mode optical fiber waveguides, it is possible to construct a gyroscope using optical fibers. The configuration is a multi-turn Sagnac interferometer. Light from an external source is split and injected into the fiber ends, travels in clockwise and counterclockwise directions and is recombined to form ...
R.W. Shorthill, G.J. Morris, L.D. Weaver
openaire +1 more source
Annual Review of Earth and Planetary Sciences, 2021
Distributed acoustic sensing (DAS) is an emerging technology that repurposes a fiber-optic cable as a dense array of strain sensors. This technology repeatedly pings a fiber with laser pulses, measuring optical phase changes in Rayleigh backscattered light.
Lindsey, Nathaniel J., Martin, Eileen R.
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Distributed acoustic sensing (DAS) is an emerging technology that repurposes a fiber-optic cable as a dense array of strain sensors. This technology repeatedly pings a fiber with laser pulses, measuring optical phase changes in Rayleigh backscattered light.
Lindsey, Nathaniel J., Martin, Eileen R.
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Data-driven Optical Fiber Channel Modeling: A Deep Learning Approach
Journal of Lightwave Technology, 2020A data-driven fiber channel modeling method based on deep learning (DL) is introduced in an optical communication system. In this study, bidirectional long short-term memory (BiLSTM) is selected from a diverse range of DL algorithms to perform fiber ...
Danshi Wang +7 more
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SPIE Proceedings, 1984
The engeneerized prototipe of a fiber-optic sensor useful for vibration measurement in hostile environments is presented.The vibrometer is essentially based on a "differential" heterodyne Michelson-type interferometer in which the reference beam and the sensing beam are both guided, with orthogonal polarization, by the same single-mode polarization ...
MARTINELLI, MARIO +2 more
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The engeneerized prototipe of a fiber-optic sensor useful for vibration measurement in hostile environments is presented.The vibrometer is essentially based on a "differential" heterodyne Michelson-type interferometer in which the reference beam and the sensing beam are both guided, with orthogonal polarization, by the same single-mode polarization ...
MARTINELLI, MARIO +2 more
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Hollow Core DNANF Optical Fiber with <0.11 dB/km Loss
Optical Fiber Communications Conference and ExhibitionWe report the fabrication of a hollow-core DNANF with a geometry extensively optimized for minimum loss. Three independent loss measurements average 0.08±0.03 dB/km at 1550 nm, the lowest attenuation ever achieved in an optical fiber.
Yong Chen +18 more
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Applied Optics, 1975
In this paper we describe how the art of weaving can be applied to fiber optics in order to produce precisely controlled reproducible image guides and image dissectors. As examples of the types of device for which woven fiber optics are applicable, we describe a 3:1 interleaver for use with a cathode-ray tube to produce color images, and a high speed ...
A C, Schmidt +2 more
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In this paper we describe how the art of weaving can be applied to fiber optics in order to produce precisely controlled reproducible image guides and image dissectors. As examples of the types of device for which woven fiber optics are applicable, we describe a 3:1 interleaver for use with a cathode-ray tube to produce color images, and a high speed ...
A C, Schmidt +2 more
openaire +2 more sources