scholarly journals Characterization of Chromatic Dispersion and Refractive Index of Polymer Optical Fibers

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 730 ◽  
Author(s):  
Igor Ayesta ◽  
Joseba Zubia ◽  
Jon Arrue ◽  
María Illarramendi ◽  
Mikel Azkune
Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 90 ◽  
Author(s):  
Igor Ayesta ◽  
María Illarramendi ◽  
Jon Arrue ◽  
Itxaso Parola ◽  
Felipe Jiménez ◽  
...  

2015 ◽  
Vol 54 (11) ◽  
pp. 118001 ◽  
Author(s):  
Heeyoung Lee ◽  
Neisei Hayashi ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura

2020 ◽  
Vol 16 (2) ◽  
pp. 140-144
Author(s):  
Hazura Haroon ◽  
Muhamad Naeem Mohd Nazri ◽  
Siti Khadijah Idris ◽  
Hanim Abdul Razak ◽  
Anis Suhaila Mohd Zain ◽  
...  

In this paper, we report a comparative study of fiber optic sensors for the application of aqueous solutions concentration monitoring. A simple, economical, and efficient set-up for liquid concentration measurement system was developed using polymer optical fibers (POFs). Cornstarch, sucrose, and salt solutions with different concentrations were tested, and the output power and the refractive index obtained were compared. The sensitivity of the sensor is found ranging from 0.938 μW/ RIU to 96.9 μW/RIU in term of refractive index change and 0.04298 μW/molL-1 to 0.097 μW/molL-1 in terms of concentration. It has been found that the concentration is proportionally related to its refractive index where high refractive index will experience greater loss since the light rays tend to be refracted out of the fiber instead of being internally reflected. The experimental results also show that as the solution’s concentration increases, the output power decreases.


Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2251
Author(s):  
Mikel Azkune ◽  
Angel Ortega-Gomez ◽  
Igor Ayesta ◽  
Joseba Zubia

This work reports a novel method to create a 3D map of the refractive index of different graded-index polymer optical fibers (GI-POF), measuring the Raman spectra at different points of their transverse sections. Raman fingerprints provide accurate molecular information of the sample with high spatial resolution. The refractive index of GI-POFs is modified by adding a dopant in the preform; therefore, by recording the intensities of the Raman peaks related to the dopant material, a 3D map of the refractive index is rendered. In order to demonstrate the usefulness of the method, three different GI-POFs were characterized and the obtained results were compared with the information provided by the manufacturers. The results show accurate 3D maps of the refractive index taken in the actual GI-POF end faces, showing different imperfections that manufacturers do not take into account, such as the slight deviations of the azimuthal symmetry. The simplicity and the feasibility of the technique mean this method has high potential for fiber characterization purposes.


2016 ◽  
Vol 10 (1) ◽  
pp. 012201 ◽  
Author(s):  
Shumpei Shimada ◽  
Heeyoung Lee ◽  
Makoto Shizuka ◽  
Hiroki Tanaka ◽  
Neisei Hayashi ◽  
...  

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