[EN] Optical fibers containing multiple cores are being developed towards capacity enhancement in space-division multiplexed optical communication networks. In many cases, the fibers are designed for negligible direct ...
[EN] Composites have added new dimensions to the design and construction of buildings and struc-tures. One of the wider spread composite applications in the construction industry is composite beams or pillars, which can ...
Madrigal-Madrigal, Javier; Barrera Vilar, David; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2019-09-15)
[EN] Multicore optical fibers are of great interest in the optical sensing field. Their core diversity and spatial distribution enable the development of sensing mechanisms that are not possible in single-core fibers. In ...
Madrigal-Madrigal, Javier; Barrera, David; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2020-08)
[EN] Multiple regenerated fiber Bragg gratings were inscribed in all the cores of a seven-core fiber in order to develop a multi-parameter sensor designed to operate at high temperatures. We experimentally showed the ...
[EN] We propose and experimentally demonstrate distributed microwave photonics signal processing over a few-mode fiber link by implementing 4-sample true time delay line operation. The inscription of a set of long period ...
[EN] Sensitive bending and vibration sensors based on a coupled-core optical fiber with
Bragg gratings are proposed and demonstrated. The interrogation of such sensors is cost
effective without comprising the sensors performance.
[EN] A compact optical fiber sensor by embedding fiber Bragg gratings (FBGs) in strongly coupled multicore fiber (SCMCF) is proposed for multipoint and multiparameter sensing. To build the device, two FBGs with different ...
[EN] We developed a temperature quasi-distributed sensing system interrogating a 500 weak fiber Bragg gratings (FBGs) array of 5 meters.
It was possible to sense temperature changes down to 1°C with sub-centimeter spatial ...
[EN] A novel temperature-insensitive optical curvature sensor has been proposed and demonstrated. The sensor is fabricated by inscribing fiber Bragg gratings with short lengths into a piece of strongly coupled multicore ...
[EN] This Letter presents a simple temperature-insensitive optical tilt sensor based on a single eccentric-core fiber Bragg grating (ECFBG). By partly inserting an ECFBG into a ceramic ferrule, the reflection spectrum of ...
[EN] We have inscribed a tilted fiber Bragg grating (TFBG) in selected cores of a multicore optical fiber. The presence of the TFBG permits to couple light from the incident guided mode to the cladding modes and to the ...
Floris, Ignazio; Madrigal-Madrigal, Javier; Sales Maicas, Salvador; Calderón García, Pedro Antonio; Adam, Jose M(Elsevier, 2020-06)
[EN] This study presents a novel method for twisting compensation in optical shape sensing and first reports on twisting sensing by using Fiber Bragg Gratings (FBG) inscribed in a spun Multicore Fiber (MCF). A simple ...