Transmission characteristics of fiber Bragg gratings written in holey fibers corresponding to air-hole size and their application

2006 ◽  
Vol 18 (16) ◽  
pp. 1783-1785 ◽  
Author(s):  
Young-Geun Han ◽  
Young Jun Lee ◽  
Gil Hwan Kim ◽  
Hung Su Cho ◽  
Sang Bae Lee ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Hole Size ◽  
Transmission Characteristics ◽  
Air Hole

scholarly journals Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing

2010 ◽  
Vol 35 (9) ◽  
pp. 1443 ◽  
Author(s):  
Charles M. Jewart ◽  
Qingqing Wang ◽  
John Canning ◽  
Dan Grobnic ◽  
Stephen J. Mihailov ◽  
...  
Keyword(s):  
High Temperature ◽  
Femtosecond Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Pressure Sensing ◽  
Microstructured Fibers ◽  
Air Hole

scholarly journals THE METHOD OF DETECTING INHOMOGENEITIES AND DEFECTS IN MATERIALS USING SENSORS BASED ON THE FIBER BRAGG OPTIC STRUCTURES

2019 ◽  
Vol 9 (3) ◽  
pp. 62-65
Author(s):  
Łukasz Zychowicz
Keyword(s):  
Transmission Spectrum ◽  
Optical Spectrum ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Total Width ◽  
Full Width ◽  
Half Maximum ◽  
Optical Spectrum Analyzer ◽  
Transmission Characteristics ◽  
Main Minimum

The article presents the possibilities of detecting defect in materials using the fiber Bragg gratings (FBG). Steel belts with a thickness of 1 mm were used for the tests: one standard and the others were damaged. The damage was in the form of incisions. The FBG was glued to the sample with epoxy glue along its entire length and elongation by outside force. Based on the transmission spectrum obtained on the Optical Spectrum Analyzer (OSA) the processing characteristics: the main minimum on the transmission characteristics, total width of the spectrum and the full width at half maximum FWHM depending on the FBG strain was determine.

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