Fiber Bragg grating writing technique for multimode optical fibers providing stimulation of few-mode effects in measurement systems

2016 ◽  
Author(s):  
Anton V. Bourdine ◽  
Alexander A. Vasilets ◽  
Vladimir A. Burdin ◽  
Oleg G. Morozov ◽  
Ilnur I. Nureev ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Bragg Grating ◽  
Measurement Systems ◽  
Mode Effects ◽  
Stimulation Of

scholarly journals Femtosecond-Laser-Assisted Fabrication of Radiation-Resistant Fiber Bragg Grating Sensors

2022 ◽  
Vol 12 (2) ◽  
pp. 886
Author(s):  
Hun-Kook Choi ◽  
Young-Jun Jung ◽  
Bong-Ahn Yu ◽  
Jae-Hee Sung ◽  
Ik-Bu Sohn ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Coming Out ◽  
Single Mode ◽  
Femtosecond Laser Irradiation ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Radiation Resistant ◽  
Fbg Sensors

This paper demonstrates the fabrication of radiation-resistant fiber Bragg grating (FBG) sensors using infrared femtosecond laser irradiation. FBG sensors were written inside acrylate-coated fluorine-doped single-mode specialty optical fibers. We detected the Bragg resonance at 1542 nm. By controlling the irradiation conditions, we improved the signal strength coming out from the FBG sensors. A significant reduction in the Bragg wavelength shift was detected in the fabricated FBG sensors for a radiation dose up to 105 gray, indicating excellent radiation resistance capabilities. We also characterized the temperature sensitivity of the radiation-resistant FBG sensors and detected outstanding performance.

Results of fiber Bragg grating writing on silica graded-index multimode optical fibers of different generations

2016 ◽  
Vol 14 (2) ◽  
pp. 129-137
Author(s):  
A.V. Bourdine ◽  
◽  
A.A. Vasilets ◽  
V.A. Burdin ◽  
O.G. Morozov ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Bragg Grating ◽  
Graded Index

Metrological Performances of Fiber Bragg Grating Sensors and Comparison with Electrical Strain Gauges

2011 ◽  
Vol 495 ◽  
pp. 53-57
Author(s):  
Marco Borotto ◽  
Enrico De Cais ◽  
Marco Belloli ◽  
Andrea Bernasconi ◽  
Stefano Manzoni
Keyword(s):  
Fiber Bragg Grating ◽  
Thermal Effects ◽  
Measurement Accuracy ◽  
Signal To Noise Ratio ◽  
Bragg Grating ◽  
Light Spectrum ◽  
Static Tests ◽  
Measurement Systems ◽  
Fiber Bragg Grating Sensors ◽  
Fbg Sensors

The fiber Bragg grating sensors (FBGs) have been recently introduced: they present a photorecord grating on the fiber itself, which allows the reflection of a certain wavelength of the input light spectrum. The applied strain is estimated relying on changes of the reflected wavelength. One of the possible applications that has prompted us to study this type of sensors is the possibility to create smart dynamometric structures based on carbon fiber by embedding FBGs. Many papers are available in literature about some applications with smart structures but there is not yet an appropriate metrological characterization about these FBG sensors, their strengths and weaknesses: for these reasons it was deemed useful making several tests on FBG sensors in terms of measurement accuracy, signal to noise ratio, ability to compensate for thermal effects and their behavior for dynamic applications. All these results have been compared to electrical strain gauge ones, which represent the actual reference strain measurement systems. The various solutions to compensate for thermal effects have offered several information for further analyses and the basis for a future use of these sensors for static or semi-static tests. Being fully aware of FBGs characteristics allows to draw down guidelines about their integration in composite materials for the most different applications, understanding in a better way the sensor response.

Fiber Bragg grating spectra in multimode optical fibers

2006 ◽  
Vol 24 (1) ◽  
pp. 598-604 ◽  
Author(s):  
Changgui Lu ◽  
Yiping Cui
Keyword(s):  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Bragg Grating

Shear Strain Influence on Fiber Bragg Grating Measurement Systems

2009 ◽  
Vol 27 (23) ◽  
pp. 5223-5229 ◽  
Author(s):  
M.S. Muller ◽  
T.C. Buck ◽  
H.J. El-Khozondar ◽  
A.W. Koch
Keyword(s):  
Shear Strain ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Measurement Systems

scholarly journals Angle dependent Fiber Bragg grating inscription in microstructured polymer optical fibers

2015 ◽  
Vol 23 (3) ◽  
pp. 3699 ◽  
Author(s):  
Ivan-Lazar Bundalo ◽  
Kristian Nielsen ◽  
Ole Bang
Keyword(s):  
Fiber Bragg Grating ◽  
Optical Fibers ◽  
Bragg Grating ◽  
Polymer Optical Fibers
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