Spatial characterization of strong fiber Bragg gratings

2003 ◽  
Author(s):  
Ole H. Waagaard ◽  
Erlend Ronnekleiv ◽  
Jon T. Kringlebotn
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Spatial Characterization

Photoluminescence mapping of oxygen-defect emission for nanoscale spatial characterization of fiber Bragg gratings

2014 ◽  
Vol 116 (6) ◽  
pp. 064906 ◽  
Author(s):  
David Barba ◽  
François Martin ◽  
Kamel Tagziria ◽  
Mischa Nicklaus ◽  
Émile Haddad ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Oxygen Defect ◽  
Defect Emission ◽  
Spatial Characterization

Characterization of Optical Fibers Supporting OAM States using Fiber Bragg Gratings

CLEO: 2014 ◽  
2014 ◽  
Author(s):  
L. Wang ◽  
B. Ung ◽  
P. Vaity ◽  
L. A. Rusch ◽  
Y. Messaddeq ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings

scholarly journals Spectral characterization of differential group delay in uniform fiber Bragg gratings

2005 ◽  
Vol 13 (25) ◽  
pp. 9954 ◽  
Author(s):  
S. Bette ◽  
C. Caucheteur ◽  
M. Wuilpart ◽  
P. Mégret ◽  
R. Garcia-Olcina ◽  
...  
Keyword(s):  
Group Delay ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Spectral Characterization ◽  
Differential Group Delay ◽  
Differential Group

Characterization of Optical Fiber Bragg Gratings as Strain Sensors Considering Load Direction

2008 ◽  
Author(s):  
Michael C. Emmons ◽  
Sunny Karnani ◽  
K. P. Mohanchandra ◽  
Gregory P. Carman ◽  
Stefano Trono ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Strain Sensors ◽  
Great Promise ◽  
Fiber Direction ◽  
Load Direction ◽  
Isotropic Composite ◽  
Loading Direction

This study investigates the influence of lay-up and load direction on embedded optical fiber Bragg gratings (FBGs) used as strain sensors. FBGs have shown great promise for application to structural health monitoring with advantages of small size and cylindrical geometry readily allowing for embedment within fiber reinforced composites. Characterization of the embedded FBGs is necessary to develop a rugged and reliable strain sensor. This paper specifically explores the effects of loading direction on the FBG strain outputs. A well behaved baseline case is established with results for gratings loaded parallel to the optical fiber direction while embedded parallel to the adjacent structural fibers in a quasi-isotropic composite. Results and analysis are also presented for a case involving a composite fabricated with the optical and structural fibers parallel to each other but perpendicular to the loading direction. Extremely good results are obtained relating FBG strain measurements with that of surface mounted resistance strain gauges.

Characterization of 100 Micron Long Fiber Bragg Gratings and Applications in Ultrafast Shock Wave Experiments

2019 ◽  
Vol 37 (18) ◽  
pp. 4537-4541
Author(s):  
Ehud Shafir ◽  
Garry Berkovic ◽  
Shlomi Zilberman Yair Saadi ◽  
Alexander Fedotov-Gefen ◽  
Yonatan Schweitzer ◽  
...  
Keyword(s):  
Shock Wave ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings
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