Results 31 to 40 of about 405,286 (224)
Journal of the European Optical Society-Rapid Publications, 2009 Strong regenerated gratings with a maximum grating strength exceeding (40–50) dB are fabricated inside an optical fibre by bulk macro thermal processing ∼ 900°C using a UV-laser seeded Bragg grating. Further annealing between 1000°C and 1100°C leads to a
Canning John +5 more
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International Journal of Distributed Sensor Networks, 2018 Tunnels and subway blast doors are effective barriers to terrorist attacks and emergencies, and research into the mechanical properties of blast doors under explosive dynamic loads can improve and enhance the performance thereof. In this article, surface
Ziming Xiong +6 more
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Photonic integrated circuits for terahertz source generation
IET Optoelectronics, 2020 The authors introduce four kinds of terahertz photonics components based on photonic integrated circuits (PICs). A PIC‐based integrated optoelectronic synthesiser for THz communications is described, which can be tuned continuously over the range 0.254–2.
Lianping Hou +3 more
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Extreme Silica Optical Fibre Gratings
Sensors, 2008 A regenerated optical fibre Bragg grating that survives temperature cycling up to 1,295°C is demonstrated. A model based on seeded crystallisation or amorphisation is proposed.
Kevin Cook +3 more
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A simple method for fabricating phase-shifted fibre Bragg gratings with flexible choice of centre wavelength [PDF]
, 2009 A simple technique for fabricating phase-shifted fibre Bragg gratings (PSFBGs) without the use of a phase-shifted phase mask is presented. Two, 3-mm long, standard fibre Bragg gratings (FBGs) were inscribed sequentially in singlemode fibre at the same
Ralph P. Tatam +5 more
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An Optical Fibre Depth (Pressure) Sensor for Remote Operated Vehicles in Underwater Applications
Sensors, 2017 A miniature sensor for accurate measurement of pressure (depth) with temperature compensation in the ocean environment is described. The sensor is based on an optical fibre Extrinsic Fabry-Perot interferometer (EFPI) combined with a Fibre Bragg Grating ...
Dinesh Babu Duraibabu +8 more
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Sensors, 2022 In this paper, with the final aim of shape sensing for a morphing aircraft wing section, a developed multimodal shape sensing system is analysed. We utilise the method of interrogating a morphing wing section based on the principles of both hybrid ...
Nakash Nazeer +2 more
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Fatigue Crack Propagation Monitoring Using Fibre Bragg Grating Sensors
Vibration, 2021 The paper presents the analysis of the possibility of fatigue crack detection and monitoring its propagation process using fibre Bragg grating (FBG) sensors.
Magdalena Mieloszyk
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Azobenzene-Based Gel Coated Fibre Bragg Grating Sensor for Moisture Measurement
International Journal of Polymer Science, 2016 A fibre Bragg grating sensor is coated with a novel polymer gel in order to investigate its suitability for nondestructive measurement of moisture in materials that can potentially lose their integrity due to moisture ingress.
Mohammed Moniruzzaman, John Rock
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A Review: Evolution and Diversity of Optical Fibre Plasmonic Sensors
Sensors, 2019 The purpose of this review is to bring to the attention of the wider research community how two quite different optical sensory techniques were integrated resulting in a sensor device of exceptional sensitivity with wide ranging capability.
Thomas Allsop, Ron Neal
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