Results 31 to 40 of about 82,664 (317)

Temperature Resistant Fiber Bragg Gratings for On-Line and Structural Health Monitoring of the Next-Generation of Nuclear Reactors

open access: yesItalian National Conference on Sensors, 2018
The harsh environment associated with the next generation of nuclear reactors is a great challenge facing all new sensing technologies to be deployed for on-line monitoring purposes and for the implantation of SHM methods.
G. Laffont   +4 more
semanticscholar   +1 more source

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

Extreme Environment Sensing Using Femtosecond Laser-Inscribed Fiber Bragg Gratings

open access: yesItalian National Conference on Sensors, 2017
The femtosecond laser-induced fiber Bragg grating is an effective sensor technology that can be deployed in harsh environments. Depending on the optical fiber chosen and the inscription parameters that are used, devices suitable for high temperature ...
S. Mihailov   +6 more
semanticscholar   +1 more source

Single-mode sapphire fiber Bragg grating

open access: yesOptics Express, 2022
Sapphire optical fiber has the ability to withstand ultrahigh temperatures and high radiation, but it is multimoded which prevents its use in many sensing applications. Problematically, Bragg gratings in such fiber exhibit multiple reflection peaks with a fluctuating power distribution.
Wang, M   +6 more
openaire   +3 more sources

Fiber Bragg grating-based optical filters for high-resolution sensing: A comprehensive analysis

open access: yesResults in Optics, 2023
In-fiber Bragg grating filters continue to proliferate, and their applications expand with the rapid advancement of fiber optic component fabrication techniques.
Biswajit Ghosh, Sanjoy Mandal
doaj   +1 more source

Overhead Transmission Line Sag Estimation Using a Simple Optomechanical System with Chirped Fiber Bragg Gratings. Part 1: Preliminary Measurements

open access: yesItalian National Conference on Sensors, 2018
A method of measuring the power line wire sag using optical sensors that are insensitive to high electromagnetic fields was proposed. The advantage of this technique is that it is a non-invasive measurement of power line wire elongation using a unique ...
M. Wydra   +3 more
semanticscholar   +1 more source

Optical Solitons and Single Traveling Wave Solutions for the Fiber Bragg Gratings with Generalized Anticubic Nonlinearity

open access: yesAdvances in Mathematical Physics, 2023
This paper retrieves the vector-coupled version of the generalized anticubic nonlinearity model in fiber Bragg gratings. With the help of the trial equation approach and the complete discriminant system for polynomial, nine families of the optical ...
Dan Chen, Zhao Li
doaj   +1 more source

Point-by-point femtosecond laser micro-processing of independent core-specific fiber Bragg gratings in a multi-core fiber.

open access: yesOptics Express, 2018
Four 3rd order fiber Bragg gratings were inscribed into separate cores of a 7 core multi-core fiber using the point-by-point inscription technique. A 1030 nm, 206 ± 5 fs laser was used, operating at a frequency of 1 kHz and pulse energy of 2.1 ± 0.2 µJ ...
A. Donko   +5 more
semanticscholar   +1 more source

Etching Process Related Changes and Effects on Solid-Core Single-Mode Polymer Optical Fiber Grating

open access: yesIEEE Photonics Journal, 2016
Etching process related material and mechanical changes on solid-core single-mode polymer optical fiber (POF) and their influence on the characteristic properties of polymer fiber Bragg gratings (PFBGs) are studied.
Kishore Bhowmik   +6 more
doaj   +1 more source

ULTRASOUND DETECTION BY APPLYING FIBER BRAGG GRATINGS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. This paper presents the results of an experimental study on the possibility of applying single fiber Bragg gratings as sensitive elements for detecting ultrasonic impacts in gaseous or liquid media and at placing fiber Bragg ...
Alexander A. Vlasov   +5 more
doaj   +1 more source

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