Nitrogen-doped silica-core fibres for Bragg gratings sensing at elevated temperatures

2005 ◽  
Author(s):  
Konstantin M. Golant ◽  
Oleg V. Butov ◽  
Evgeny M. Dianov
Keyword(s):  
Elevated Temperatures ◽  
Bragg Gratings ◽  
Nitrogen Doped ◽  
Silica Core

scholarly journals Temperature and Strain Sensing With Femtosecond Laser Written Bragg Gratings in Defect and Nondefect Suspended-Silica-Core Fibers

2012 ◽  
Vol 24 (7) ◽  
pp. 554-556 ◽  
Author(s):  
Luís André Fernandes ◽  
Martin Becker ◽  
Orlando Frazao ◽  
Kay Schuster ◽  
Jens Kobelke ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Bragg Gratings ◽  
Strain Sensing ◽  
Silica Core

Nitrogen doped silica core fibres: A new type of radiation-resistant fibre

1995 ◽  
Vol 31 (17) ◽  
pp. 1490-1491 ◽  
Author(s):  
E.M. Dianov ◽  
R.R. Khrapko ◽  
A.L. Tomashuk ◽  
K.M. Golant
Keyword(s):  
Nitrogen Doped ◽  
Radiation Resistant ◽  
New Type ◽  
Silica Core ◽  
Resistant Fibre

MEASUREMENT OF STRAINS IN CARBON-REINFORCED POLYMER COMPOSITE PRODUCTS AT ELEVATED TEMPERATURES USING FIBER-OPTIC SENSORS

2019 ◽  
pp. 14-19
Author(s):  
O. N. Budadin ◽  
W. Yu. Kutyurin ◽  
A. N. Rykov ◽  
P. I. Gnusin
Keyword(s):  
Elevated Temperatures ◽  
Fiber Optic ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Fiber Optic Sensors ◽  
Effect Of Temperature ◽  
Main Task ◽  
Reinforced Polymer ◽  
Different Temperatures ◽  
Quantitative Results

The main task of the contribution was the estimation of the possibility of using Fiber Bragg Gratings as a mean of measuring the deformation in standard carbon fiber samples at elevated temperatures. The article presents the results of experiments on the measurement of deformations in a carbon sample using Fiber Bragg Gratings on an optical fiber. Deformations were measured in the process of stretching the sample at different temperatures (range from 20 to 140 °C). It is shown that FBGs integrated into the sample material give more stable, reproducible readings, unlike to inlay on the outer surface. It has been established that the use of several FBGs with different sensitivity to temperature or deformation (created by mechanically decoupling the sensor from the sample) makes it possible to compensate the effect of temperature when measuring deformations. The quantitative results of measurements are provided.

Temperature and strain characterization of Bragg gratings impressed with femtosecond laser radiation in suspended-silica-core fibers

2009 ◽  
Author(s):  
Luís A. Fernandes ◽  
Martin Becker ◽  
Orlando Frazão ◽  
Manfred Rothhardt ◽  
Sven Brückner ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Femtosecond Laser ◽  
Bragg Gratings ◽  
Femtosecond Laser Radiation ◽  
Strain Characterization ◽  
Silica Core

Utlra-Thermostable Long-Period Gratings Written in Nitrogen-Doped Silica Fibers

1998 ◽  
Vol 531 ◽  
Author(s):  
V. I. Karpov ◽  
M. V. Grekov ◽  
E. M. Dianov ◽  
K. M. Golant ◽  
R. R. Khrapko
Keyword(s):  
Refractive Index ◽  
Optical Fibers ◽  
Effective Refractive Index ◽  
Nitrogen Doped ◽  
Fiber Core ◽  
Long Period ◽  
Silica Fibers ◽  
Long Period Gratings ◽  
Silica Core

AbstractLong-period gratings were written in nitrogen-doped-silica-core optical fibers by point heating. The periodic variations of the effective refractive index were induced via diffusion of nitrogen from the fiber core. It is shown experimentally that such gratings remain functional at temperatures of up to 1200 °C.

Ultra-thermo-resistant Bragg gratings written in nitrogen-doped silica fibres

2002 ◽  
Vol 38 (11) ◽  
pp. 523 ◽  
Author(s):  
O.V. Butov ◽  
K.M. Golant ◽  
I.V. Nikolin
Keyword(s):  
Bragg Gratings ◽  
Nitrogen Doped

scholarly journals H_2 impact on Bragg gratings written in N-doped silica-core fiber

2007 ◽  
Vol 15 (19) ◽  
pp. 12374 ◽  
Author(s):  
Alexey V. Lanin ◽  
Oleg V. Butov ◽  
Konstantin M. Golant
Keyword(s):  
Bragg Gratings ◽  
Core Fiber ◽  
Silica Core
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