Results 21 to 30 of about 1,164 (214)

A Fiber Bragg Grating-Based Anemometer [PDF]

Sensors, 2018
A novel fiber anemometer based on two pairs of fiber gratings is experimentally demonstrated and can simultaneously detect wind speed and wind direction. One pair of gratings, which are separated by 90° in space, is fixed on a small stainless steel pipe driven by a rotating disc for measuring the wind-direction angle.
Huang, Chuan-Ying, Chan, Pei-Wen, Chang, Hung-Ying, Liu, Wen-Fung   +3 more
openaire   +3 more sources

Advances on Polymer Optical Fiber Gratings Using a KrF Pulsed Laser System Operating at 248 nm

Fibers, 2018
This paper presents the achievements and progress made on the polymer optical fiber (POF) gratings inscription in different types of Fiber Bragg Gratings (FBGs) and long period gratings (LPGs). Since the first demonstration of POFBGs in 1999, significant
Carlos A. F. Marques, Arnaldo G. Leal-Junior, Rui Min, Maria Domingues, Cátia Leitão, Paulo Antunes, Beatriz Ortega, Paulo André   +7 more
doaj   +1 more source

Wavelength tunable TFBG based microwave sensor using surface plasmon resonance

Egyptian Journal of Remote Sensing and Space Sciences, 2016
A noble idea is used to propose a wavelength tunable tilted Fiber Bragg Gratings based microwave sensor using surface plasmon resonance. The Bragg wavelength shifts linearly about 6 pm/°C, due to the temperature change.
Imran Khan, Md. Mostafizur Rahman
doaj   +1 more source

In-Fiber Thermally Diffused Coupler and Fiber Bragg Grating Inscribed in Twin-Core Fiber for Sensitivity-Enhanced Vector Bending Sensing

Photonic Sensors, 2023
A vector bending fiber sensor based on core-by-core inscribed fiber Bragg gratings in a twin-core fiber has been proposed and experimentally demonstrated.
Lingzhi Meng, Hongye Wang, Qi Xia, Tingting Yuan, Xiaotong Zhang, Libo Yuan   +5 more
doaj   +1 more source

Recent Advancements in Rayleigh Scattering-Based Distributed Fiber Sensors

Advanced Devices & Instrumentation, 2021
Recently, Rayleigh scattering-based distributed fiber sensors have been widely used for measurement of static and dynamic phenomena such as temperature change, dynamic strain, and sound waves.
Xiaoyi Bao, Yuan Wang
doaj   +1 more source

Monitoring of Torque Induced Strain in Composite Shafts with Embedded and Surface-Mounted Optical Fiber Bragg Gratings

Sensors, 2021
In this study, silica glass, optical fiber Bragg gratings (FBGs) are used for torque-induced strain monitoring in carbon fiber reinforced polymer (CFRP) hollow shafts toward the development of a methodology for structural load monitoring.
Maria Konstantaki, Georgios Violakis, Georgios A. Pappas, Thomas Geernaert, Nikos Korakas, Nikos Tiriakidis, Thomai Tiriakidi, Kosmas Tiriakidis, Hugo Thienpont, Francis Berghmans, John Botsis, Stavros Pissadakis   +11 more
doaj   +1 more source

Three-dimensional multichannel waveguide grating filters

Opto-Electronic Science
Distributed fiber gratings exhibit outstanding capabilities in achieving a wide spectral response through the superimposition of gratings with different periods in the fiber core.
Si-Yu Yin, Qi Guo, Shan-Ren Liu, Ju-Wei He, Yong-Sen Yu, Zhen-Nan Tian, Qi-Dai Chen   +6 more
doaj   +1 more source

57-fs, Er-doped all-fiber all-polarization-maintaining amplifier based on a hybrid DCF/FBG scheme for dispersion compensation

Results in Optics, 2023
In this paper we experimentally demonstrate a femtosecond all-polarization- maintaining laser amplifier in an all-fiber scheme, which consists of a mode-locked oscillator and a two-stage amplifier.
Kuo Meng, Shuchao Sun, Mohan Li, Zengchao Wang   +3 more
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

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, O.V. Butov, Y.K. Chamorovskiy, V.A. Isaev, A.O. Kolosovskiy, V.V. Voloshin, I.L. Vorob'ev, M.Yu. Vyatkin, P. Mégret, M. Odnoblyudov, D.A. Korobko, I.O. Zolotovskii, A.A. Fotiadi   +12 more
doaj   +1 more source