Results 21 to 30 of about 14,873 (307)

Fiber Bragg grating fabrication by femtosecond laser radiation [PDF]

open access: yesEPJ Web of Conferences, 2019
The paper presents the results of fiber Bragg gratings fabrication by femtosecond laser radiation using point-by-point and line-by-line inscription methods.
Chernikov Anton   +4 more
doaj   +1 more source

RESEARCH OF PARAMETERS OF FIBER-OPTICAL MEASURING SYSTEMS

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2019
At present there exist a lot of technical devices, the failure of which can be connected not only with huge financial losses, but with the treat to the environment as well.
Waldemar Wójcik   +5 more
doaj   +1 more source

A Fiber Bragg Grating-Based Anemometer [PDF]

open access: yesSensors, 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

EFFECT OF OPTICAL FIBER HYDROGEN LOADING ON THE INSCRIPTION EFFICIENCY OF CHIRPED BRAGG GRATINGS BY MEANS OF KrF EXCIMER LASER RADIATION [PDF]

open access: yesНаучно-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

Rapidly reconfigurable optical phase encoder-decoders based on fiber Bragg gratings [PDF]

open access: yes, 2006
We demonstrate the capacity for fast dynamic reconfiguration of optical code-division multiple access (OCDMA) phase en/decoders based on fiber Bragg gratings and a thermal phase-tuning technique.
Mokhtar, M.R.   +5 more
core   +1 more source

Laser-frequency locking techniques for high-sensitivity strain measurements by high-birefringence fiber Bragg gratings and resonators [PDF]

open access: yes, 2007
A new approach to simultaneously interrogate orthogonal axes of single Fiber- Bragg-Gratings (FBGs) and FBG-FabryPerot resonator sensors fabricated in linearly highly birefringent (HiBi) fibre is presented.
Ferraro, P.   +13 more
core   +1 more source

SPECTRAL CHARACTERISTICS STUDY OF PHASE-SHIFTED FIBER BRAGG GRATINGS UNDER PRESSURE APPLIED PERPENDICULAR TO FIBER AXIS [PDF]

open access: yesНаучно-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

CENTRAL WAVELENGTH ADJUSTMENT OF LIGHT EMITTING SOURCE IN INTERFEROMETRIC SENSORS BASED ON FIBER-OPTIC BRAGG GRATINGS [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
The paper is focused on the investigation of fiber-optic interferometric sensor based on the array of fiber Bragg gratings. Reflection spectra displacement mechanism of the fiber Bragg gratings under the external temperature effects and the static ...
A. S. Aleynik   +4 more
doaj   +1 more source

Wavelength tunable TFBG based microwave sensor using surface plasmon resonance

open access: yesEgyptian 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

In-Fiber Thermally Diffused Coupler and Fiber Bragg Grating Inscribed in Twin-Core Fiber for Sensitivity-Enhanced Vector Bending Sensing

open access: yesPhotonic Sensors, 2023
A vector bending fiber sensor based on core-by-core inscribed fiber Bragg gratings in a twin-core fiber has been proposed and experimentally demonstrated.
Lingzhi Meng   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy