Differential phase tracking applied to Bragg gratings in multi-core fibre for high accuracy curvature measurement [PDF]
, 2006 High resolution quasi-static and dynamic curvature measurements are made by differential interferometric phase measurement of fibre Bragg gratings in separate cores of a multi-core fibre.
Flockhart, G M H +8 more
core +1 more source
Generation of optical signals carrying OAM based on vortex fiber-optic periodic structures
Физика волновых процессов и радиотехнические системы, 2020 In this article, author considers the process of generation of fiber modes carrying orbital angular momentum (vortex modes) using chiral fiber Bragg gratings; in this context, the formation of vortex modes is carried out by converting thefundamental mode
Azat R. Gizatulin
doaj +1 more source
SPECTRAL CHARACTERISTICS STUDY OF PHASE-SHIFTED FIBER BRAGG GRATINGS UNDER PRESSURE APPLIED PERPENDICULAR TO FIBER AXIS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2018 Subject of Research.The paper presents the study of effect that occurs when pressure is applied to the phase-shifted fiber Bragg gratings perpendicular to the fiber axis. Method. Fiber Bragg gratings inscription was performed using Talbot interferometer,
Novikova V.A. +4 more
doaj +1 more source
EFFECT OF OPTICAL FIBER HYDROGEN LOADING ON THE INSCRIPTION EFFICIENCY OF CHIRPED BRAGG GRATINGS BY MEANS OF KrF EXCIMER LASER RADIATION [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2016 Subject of Research.We present comparative results of the chirped Bragg gratings inscription efficiency in optical fiber of domestic production with and without low-temperature hydrogen loading. Method.
Sergey V. Varzhel +3 more
doaj +1 more source
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.
Chuan-Ying Huang +3 more
openaire +3 more sources
A simple and wavelength-flexible procedure for fabricating phase-shifted fibre Bragg gratings [PDF]
, 2010 A simple procedure for fabricating phase-shifted fibre Bragg gratings (PSFBGs) that does not require the use of a phase-shifted phase mask is presented.
Tatam, Ralph P. +5 more
core +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
Results in Physics, 2022 There are special requirements for chirped fiber Bragg gratings used as stretchers in ultrafast fiber lasers. The benefits of fabricating fiber stretchers by the femtosecond point-by-point single-shot technique are described.
Ivan Ulyanov +2 more
doaj +1 more source
Thermal dependence of the strain response of optical fibre Bragg gratings. [PDF]
, 2004 The temperature dependence of the strain sensitivity of fibre Bragg gratings written into a number of different fibre types has been investigated. It was found that the strain response changed on average by 0.21 ± 0.03 fm µε-1 °C-1 over a range of ...
O'Dwyer, Martin +8 more
core +1 more source
Advances in Electrical and Electronic Engineering, 2015 In this paper, an analysis of the use of wavelength and time division multiplexing techniques for quasi-distributed measurement in uniform fiber Bragg gratings is presented.
Marcel Fajkus +6 more
doaj +1 more source