Results 61 to 70 of about 40,631 (247)

Critical issues of double-metal layer coating on FBG for applications at high temperatures [PDF]

, 2019
Use of fiber Bragg gratings (FBGs) to monitor high temperature (HT) applications is of great interest to the research community. Standard commercial FBGs can operate up to 600 ∘ C.
Caponero, M. A., CIRO ZULETA, Erwin, dell'Era, A., Felli, F., Kalinowski, H. J., Lupi, C., Vendittozzi, C.   +6 more
core   +1 more source

Writing Bragg Gratings in Multicore Fibers [PDF]

Journal of Visualized Experiments, 2016
Fiber Bragg gratings in multicore fibers can be used as compact and robust filters in astronomical and other research and commercial applications. Strong suppression at a single wavelength requires that all cores have matching transmission profiles. These gratings cannot be inscribed using the same method as for single-core fibers because the curved ...
Emma Y, Lindley, Seong-Sik, Min, Sergio G, Leon-Saval, Nick, Cvetojevic, Jon, Lawrence, Simon C, Ellis, Joss, Bland-Hawthorn   +6 more
openaire   +2 more sources

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

MATEC Web of Conferences, 2017
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A., Ahmad Hambali N. A. M., Wahid M.H.A., Ariffin N. A., Shahimin M. M., Azidin M. A. M.   +5 more
doaj   +1 more source

Tilted Fiber Bragg Grating photowritten in microstructured optical fiber for improved refractive index measurement [PDF]

, 2006
International audienceWe report what we believe to be the first Tilted short-period Fiber Bragg Grating photowritten in a microstructured optical fiber for refractive index measurement.
Blanc, Wilfried, Dewynter, Véronique, Dussardier, Bernard, Ferdinand, Pierre, Labonté, Laurent, Laffont, Guillaume, Pagnoux, Dominique, Phan Huy, Minh-Châu, Roy, Philippe   +8 more
core   +4 more sources

Liquid Metal‐Based Stretchable Strain Sensor for Fruit Growth Monitoring

Advanced Materials Technologies, EarlyView.
Schematic overview of the fruit growth sensor development workflow, including sensor fabrication by injection molding, electromechanical and environmental characterization, mechanical stability testing, electronic readout integration, and outdoor field validation for monitoring of fruit growth under practical orchard conditions.
Asad Ullah, Lennert Purnal, Maximilian Krack, Sander Vijgen, Thijs Vandenryt, Dieter Reenaers, Ronald Thoelen, Wim Deferme   +7 more
wiley   +1 more source

Numerical analysis of the strain values obtained by FBG embedded in a composite material using assumptions about uniaxial stress state of the optical fiber and capillary on the Bragg grating

Fracture and Structural Integrity, 2019
One of the issues in the strain measurement with the help of fiber-optic sensors based on Bragg gratings is the calculation of the strain based on the information from the sensor and its correspondence to the material strain.
Natalia Aleksandrovna Kosheleva, Valerii Matveenko, Grigorii Serovaev, Andrey Fedorov   +3 more
doaj   +3 more sources

Research of Pre-peak Deformation Detection of Rock with Fiber Bragg Grating Sensing

Gong-kuang zidonghua, 2011
In order to obtain more precise test data of deformation and damage of rock, the paper proposed a method which uses fiber bragg grating sensing technology to detect deformation and damage process of rock.
WEI Shi-ming, CHAI Jing, YIN Shi-xian
doaj  

Pixelated Laser with Tailored Emission Spectrum Photopatterned by Digital Holographic Microscopy

Advanced Optical Materials, EarlyView.
Azobenzene‐based surface‐relief gratings inscribed via DHM‐integrated holographic lithography enable programmable pixelated DFB laser architectures. This approach allows independent control of grating parameters across a 2D array, enabling spatially tailored emission spectra.
Sudharsana Bhashyam Pillailokam, Alex Berdin, Arri Priimagi   +2 more
wiley   +1 more source

A monitoring and warning system for expressway slopes using FBG sensing technology

International Journal of Distributed Sensor Networks, 2018
This article presents a fiber Bragg grating–based monitoring and warning system for expressway slopes. A detailed architecture of the sensing system based on fiber Bragg grating sensors for safety analysis and pre-warning of slopes is described and ...
Yongqiang Hu, Chengyu Hong, Yifan Zhang, Guowei Li   +3 more
doaj   +1 more source