Results 51 to 60 of about 45,046 (304)

Mechanical strength of silica fiber splices after exposure to extreme temperatures [PDF]

, 2012
By using a combination of type-I and regenerated gratings, the mechanical strength of optical fiber splices after exposure to temperatures over 1300 C was characterized. Splice strength was found to decrease with temperature with a secondorder polynomial
John Canning, Perry, Marcus, Pawel Niewczas, Kevin Cook, Niewczas, Pawel, Michael Johnston, Johnston, Michael, Canning, John, Marcus Perry, Cook, Kevin   +9 more
core   +1 more source

Dual Temperature and Strain Measurement with the Combined Fluorescence Lifetime and Bragg Wavelength Shift Approach in Doped Optical Fiber [PDF]

We have constructed fiber-optic sensors to measure temperature and strain by combining the properties of fiber Bragg gratings with the fluorescent lifetimes of various doped fibers.
Wade, Scott A., Forsyth, David I., Sun, Tong, Chen, Xiaomei, Grattan, Kenneth T. V.   +4 more
core   +1 more source

All-optical differential current detection technique for unit protection applications [PDF]

, 2013
In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Philip Orr, Pawel Niewczas, Niewczas, Pawel, Fusiek, Grzegorz, Hao Wang, Grzegorz Fusiek, Orr, Philip, Wang, Hao   +7 more
core   +1 more source

Advances on Optical Fiber Sensors

Fibers, 2013
In this review paper some recent advances on optical fiber sensors are reported. In particular, fiber Bragg grating (FBG), long period gratings (LPGs), evanescent field and hollow core optical fiber sensors are mentioned. Examples of recent optical fiber
Luciano Mescia, Francesco Prudenzano
doaj   +1 more source

Optical Fiber Sensors for Metal Ions Detection Based on Novel Fluorescent Materials

Frontiers in Physics, 2020
Recently, novel fluorescent probes based on biomaterials and luminescent nanomaterials for metal ions attract tremendous attentions, owing to their advantages of simple operation, high sensitivity and rapid response for metals detection.
Yi Cai, Yi Cai, Ming Li, Minghao Wang, Jin Li, Ya-nan Zhang, Yong Zhao, Yong Zhao   +7 more
doaj   +1 more source

Progress on Optical Fiber Biochemical Sensors Based on Graphene

Micromachines, 2022
Graphene, a novel form of the hexagonal honeycomb two-dimensional carbon-based structural material with a zero-band gap and ultra-high specific surface area, has unique optoelectronic capabilities, promising a suitable basis for its application in the ...
Yani Zhang, Lei Zhou, Dun Qiao, Mengyin Liu, Hongyan Yang, Cheng Meng, Ting Miao, Jia Xue, Yiming Yao   +8 more
doaj   +1 more source

Flexible protection architectures using distributed optical sensors [PDF]

, 2012
In this paper we describe recent developments in flexible protection schemes that make use of passive fibre Bragg grating (FBG) based transducers for the distributed measurement of voltage and current.
Nishida, Tomonori, Niewczas, Pawel, F. Kawano, P. Beaumont, Fusiek, Grzegorz, Booth, Campbell, Orr, Philip, C.D. Booth, P. Niewczas, Kawano, Fumio, A. Dysko, T. Nishida, Beaumont, Phil, P. Orr, G. Fusiek, Dysko, Adam   +15 more
core   +1 more source

Design and development of FBG based load cell for weight monitoring of cesium pencil in radiation environment

Discover Sensors
This paper presents the design, analysis and development of a fiber Bragg grating (FBG) based load cell integrated with a titanium transducer for monitoring the weight of Cesium (Cs) pencils in radiation and elevated temperature environment.
G. Yadav, J. Kumar, R. Mahakud, S. Kumar, A. K. Sahoo, J. Kishore, H. Gaikwad, S. Maity, S. Wadhwa, Y. C. Shivakumar, O. Prakash   +10 more
doaj   +1 more source

Vernier effect using in-line highly coupled multicore fibers

Scientific Reports, 2021
We demonstrate optical fiber sensors based on highly coupled multicore fibers operating with the optical Vernier effect. The sensors are constructed using a simple device incorporating single-mode fibers (SMFs) and a segment of a multicore fiber.
Natanael Cuando-Espitia, Miguel A. Fuentes-Fuentes, Amado Velázquez-Benítez, Rodrigo Amezcua, Juan Hernández-Cordero, Daniel A. May-Arrioja   +5 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source