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Optical Fiber Gratings Immunoassays [PDF]

open access: yesSensors, 2019
Optical fibers are of growing interest for biosensing, especially for point-of-care and biomedical assays. Their intrinsic properties bestow them sought-after assets for the detection of low concentrations of analytes. Tilted fiber Bragg gratings (TFBGs)
Médéric Loyez   +3 more
doaj   +6 more sources

Arc-Induced Long-Period Fiber Gratings at INESC TEC. Part I: Fabrication, Characterization and Mechanisms of Formation [PDF]

open access: yesSensors, 2021
In this work, we reviewed the most important achievements of INESC TEC related to the fabrication of long-period fiber gratings using the electric arc technique.
Gaspar Rego   +2 more
doaj   +2 more sources

Simulation of the Transmission Spectrum of Long-Period Fiber Gratings Structures with a Propagating Acoustic Shock Front [PDF]

open access: yesSensors, 2021
In this paper, we investigate modification of transmission spectra of long-period fiber grating structures with an acoustic shock front propagating along the fiber.
Oleg V. Ivanov   +2 more
doaj   +2 more sources

Mechanically-Induced Long-Period Fiber Gratings Using Laminated Plates [PDF]

open access: yesSensors, 2020
This work presents a formation method of mechanically-induced long-period fiber gratings using laminated plates. The mechanically-induced long-period fiber grating is temporarily inscribed by compressing the optical fiber between a flat plate and the ...
Ismael Torres-Gómez   +2 more
doaj   +2 more sources

Monitoring of Curing Process of Epoxy Resin by Long-Period Fiber Gratings [PDF]

open access: yesSensors
The curing of epoxy resin is a complex thermo-chemical process that is difficult to monitor using existing sensing systems. We monitored the curing process of an epoxy resin by using long-period fiber gratings.
Oleg V. Ivanov   +3 more
doaj   +2 more sources

A novel numerical investigation of fiber Bragg gratings with dispersive reflectivity having polynomial law of nonlinearity [PDF]

open access: yesScientific Reports
Fiber Bragg gratings represent a pivotal advancement in the field of photonics and optical fiber technology. The numerical modeling of fiber Bragg gratings is essential for understanding their optical behavior and optimizing their performance for ...
Hira Tariq   +6 more
doaj   +2 more sources

Accurate Determination of the Temperature Sensitivity of UV-Induced Fiber Bragg Gratings [PDF]

open access: yesSensors
Over the past 18 months, we have performed hundreds of temperature characterizations of fiber Bragg gratings inscribed in different germanium-doped silica glass fibers.
Miguel Cosme   +8 more
doaj   +2 more sources

Mode Characteristics and Sensing Performance of Fiber Gratings

open access: yesJournal of Harbin University of Science and Technology, 2022
Fiber gratings are special optical fibers with a periodic refractive index distribution when the refractive index of the fiber core is modulated. Both the angle and period of the gratings have an influence on the sensing properties of the fiber gratings.
ZHANG Jun-xi   +3 more
doaj   +1 more source

Ultrafast Laser Processing of Optical Fibers for Sensing Applications

open access: yesSensors, 2021
A review of recent progress in the use of infrared femtosecond lasers to fabricate optical fiber sensors that incorporate fiber Bragg gratings (FBG) and random fiber gratings (RFG) is presented.
Stephen J. Mihailov   +10 more
doaj   +1 more source

INSCRIPTION PROCESS RESEARCH AND OPTIMIZATION FOR SUPERIMPOSED FIBER BRAGG GRATINGS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2017
Subject of Research. The paper presents the study of inscription process distinctive features for superimposed fiber Bragg gratings. We analyzed spectral characteristics changes of superposition segregated gratings that appear during inscription of ...
Kirill A. Konnov   +6 more
doaj   +1 more source

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