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

Local and Spectral Characterization of Optical Fibers and Fiber Bragg Gratings with Low Coherence Interferometry

2009 ◽  
Vol 28 (1) ◽  
pp. 108-126 ◽  
Author(s):  
V. Gaillard ◽  
X. Aduriz ◽  
N. Daher ◽  
X. Chapeleau ◽  
D. Leduc ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Spectral Characterization ◽  
Low Coherence ◽  
Low Coherence Interferometry

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.

scholarly journals Recent Achievements on Grating Fabrications in Polymer Optical Fibers with Photosensitive Dopants: A Review

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 273
Author(s):  
Jie Jiang ◽  
Nan Zhang ◽  
Rui Min ◽  
Xin Cheng ◽  
Hang Qu ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Refractive Index Change ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Fiber Gratings ◽  
Comprehensive Overview ◽  
Broad Perspective ◽  
Long Period Fiber Gratings ◽  
Polymer Optical Fibers ◽  
Chirped Fiber Bragg Gratings

This review discusses recent achievements on grating fabrications in polymer optical fibers doped with photosensitive materials. First, different photosensitive dopants in polymer optical fibers (POFs) are summarized, and their refractive index change mechanisms are discussed. Then, several different doping methods to fabricate the photosensitive POFs are presented. Following that, the principles of gratings, including standard fiber Bragg gratings (FBGs), tilted fiber Bragg gratings (TFBGs), chirped fiber Bragg gratings (CFBGs), phase-shifted fiber Bragg gratings (PSFBGs), and long period fiber gratings (LPFGs), are reported. Finally, fabrications of different gratings based on photosensitive POFs in the last 20 years are reported. We present our article clearly and logically, so that it will be helpful for researchers to explore a broad perspective on this proposed topic. Overall, the content provides a comprehensive overview of photosensitive POF fabrications and grating inscriptions in photosensitive POFs, including previous breakthroughs and recent advancements.

Effect of two annealing processes on the thermal regeneration of fiber Bragg gratings in hydrogenated standard optical fibers

2018 ◽  
Vol 57 (24) ◽  
pp. 6971 ◽  
Author(s):  
Kai Lu ◽  
Hangzhou Yang ◽  
Kok-Sing Lim ◽  
Harith Ahmad ◽  
Pan Zhang ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Thermal Regeneration

Technique for writing of fiber Bragg gratings over or near preliminary formed macro-structure defects in silica optical fibers

2017 ◽  
Author(s):  
Alexander S. Evtushenko ◽  
Lenar M. Faskhutdinov ◽  
Anastasia M. Kafarova ◽  
Vadim S. Kazakov ◽  
Artem A. Kuznetzov ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Structure Defects

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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