Results 1 to 10 of about 56,321 (268)

Erbium-doped fiber ring cavity assisted by an FBG and PS-FBG reflector for refractive-index measurements - INVITED [PDF]

open access: yesEPJ Web of Conferences, 2023
This work presents an interrogator system based on an erbium-doped fiber ring cavity for refractive-index measurements. This fiber ring cavity is assisted by a fiber Bragg grating and a phase-shift fiber Bragg grating, both with a similar central ...
Perez-Herrera Rosa Ana   +6 more
doaj   +1 more source

SENSITIVITY VARIATION RESEARCH OF TILTED FIBER BRAGG GRATING DURING CHEMICAL ETCHING [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental results of the chemical etching duration impact on the tilted fiber Bragg grating transmission spectrum.
Diana O. Gagarinova   +5 more
doaj   +1 more source

A New Type of Etched Fiber Grating Hydrophone

open access: yesPhotonics, 2022
We propose a new type of fiber hydrophone composed of an etched fiber Bragg grating and a special packaging structure for detecting acoustic waves in the low-frequency band under water.
Wen-Fung Liu   +4 more
doaj   +1 more source

Fiber-Optic Bragg Gratings for Temperature and Pressure Measurements in Isotope Production Targets for Nuclear Medicine

open access: yesApplied Sciences, 2020
A Bragg grating inscribed into an inorganic optical fiber was tested in proton and neutron fields up to doses of 472 Gy. Observation showed that radiation had no effect on the performance of the Fiber Bragg Grating (FBG) used as a gauge measuring ...
Michael Bakaic   +6 more
doaj   +1 more source

Strain-Sensing Mechanism and Axial Stress Response Characterization of Bolt Based on Fiber Bragg Grating Sensing

open access: yesEnergies, 2022
The anchoring quality of bolts is related to roadway safety and the surrounding rock stability. Due to the limitations of conventional monitoring methods in capturing strain, there still exists a gap in the real-time perception of the mechanical ...
Gaochuan Guo   +4 more
doaj   +1 more source

Analisa Perbandingan Kinerja Modulasi Langsung dan Modulasi Eksternal pada Adaptif Fiber Bragg Grating di Radio over Fiber System

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2023
Kombinasi Frekuensi Radio dan Fiber Optik telah menghasilkan transmisi berkapasitas tinggi dengan biaya komponen yang lebih rendah dan menjadikan Radio over Fiber sebagai trend komunikasi broadband besar saat ini.
Febrizal Ujang   +5 more
doaj   +1 more source

"All-fiber" tunable laser in the 2 mu m region, designed for CO2 detection [PDF]

open access: yes, 1992
A stable and tunable thulium-doped “all-fiber” laser offering a narrow linewidth has been created specifically to act as a compact and simple laser source for gaseous CO2 detection.
Pal, A.   +6 more
core   +4 more sources

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

open access: yes, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Cranch, Geoffrey A.   +2 more
core   +1 more source

Bragg gratings inscription in weakly-doped fibers

open access: yesResults in Physics, 2019
The results of an investigation of the Bragg gratings inscription processes in weakly-doped fibers with different dopants without preliminary hydrogen-loading are presented in this work.
Oleg V. Butov
doaj   +1 more source

Braided Fabrication of a Fiber Bragg Grating Sensor

open access: yesSensors, 2020
Our objective was to construct textile braiding manufacturing methods to facilitate high precision and accurate measurements using optical fiber Bragg grating sensors for various structures.
Songbi Lee, Joohyeon Lee
doaj   +1 more source

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