Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]
, 2012 In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
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Phase-Shifted Fiber Bragg Grating by Selective Pitch Slicing
SensorsThis paper presents a new type of phase-shifted Fiber Bragg Grating (FBG): the sliced-FBG (SFBG). The fabrication process involves cutting a standard FBG inside its grating region. As a result, the last grating pitch is shorter than the others.
Paulo Robalinho +6 more
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Application of FBG Sensing Technology to Internal Deformation Monitoring of Landslide
Advances in Civil Engineering, 2020 Limited by geological survey methods, processes, and cost, it has long been a difficult thing to accurately detect the position of landslide slip surface and monitor the landslide internal deformation.
Haiyou Peng +5 more
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Localized Dispersive States in Nonlinear Coupled Mode Equations for Light Propagation in Fiber Bragg Gratings. [PDF]
, 2009 Dispersion effects induce new instabilities and dynamics in the weakly nonlinear description of light propagation in fiber Bragg gratings. A new family of dispersive localized pulses that propagate with the group velocity is numerically found, and its ...
Carrasco, J. +2 more
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The Fundamental of Fiber Bragg Grating (FBG) Sensor
International Journal for Research in Applied Science and Engineering TechnologyAn optical sensor known as an FBG is produced by laterally exposing a single mode fiber core to a strong UV laser light pattern on a regular basis. The exposure causes a sustained increase in the refractive index (ncore) of the fiber's core, resulting in fixed index modulation called grating (λ).
openaire +1 more source
Research on the surface subsidence monitoring technology based on fiber Bragg grating sensing
Photonic Sensors, 2016 In order to monitor the process of surface subsidence caused by mining in real time, we reported two types of fiber Bragg grating (FBG) based sensors.
Jinyu Wang +8 more
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Strain measurements of composite laminates with embedded fibre Bragg gratings : criticism and opportunities for research [PDF]
, 2010 Embedded optical fibre sensors are considered for structural health monitoring purposes in numerous applications. In fibre reinforced plastics, embedded fibre Bragg gratings are found to be one of the most popular and reliable solutions for strain ...
Luyckx, Geert +3 more
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Air Gap Fiber Bragg Grating for Simultaneous Strain and Temperature Measurement
MicromachinesWe propose an air gap fiber Bragg grating (g-FBG) sensor that can measure strain and temperature simultaneously. The sensor is made by aligning two fiber Bragg gratings (FBGs), and an air gap exists between these two sub-gratings.
Fuling Yang +6 more
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Brillouin lasing in single-mode tapered optical fiber with inscribed fiber Bragg grating array
Results in Physics, 2018 A tapered optical fiber has been manufactured with an array of fiber Bragg gratings (FBG) inscribed during the drawing process. The total fiber peak reflectivity is 5% and the reflection bandwidth is ∼3.5 nm. A coherent frequency domain reflectometry has
S.M. Popov +12 more
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Rapidly reconfigurable optical phase encoder-decoders based on fiber Bragg gratings
, 2006 We demonstrate the capacity for fast dynamic reconfiguration of optical code-division multiple access (OCDMA) phase en/decoders based on fiber Bragg gratings and a thermal phase-tuning technique.
Ibsen, M. +5 more
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