optical fiber bragg grating
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2022 ◽  
Vol 54 (1) ◽  
Author(s):  
M. A. Ibrar Jahan ◽  
K. Chethana ◽  
Rajini V. Honnungar ◽  
S. Asokan


Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 180
Author(s):  
Wei Zhang ◽  
David J. Webb

PMMA based optical fiber Bragg grating (POFBG) sensors are investigated in an environmental chamber with controlled temperature and relative humidity at temperature extended to 70 °C. At below a critical temperature of 50 °C the POFBG sensor exhibits good linearity and sensitivity for both temperature and humidity sensing. Nonlinear responses are observed at higher temperature, giving rise to varying, reduced magnitudes of sensitivities. An important feature of POFBG humidity sensing is observed at above critical temperature where the POFBG humidity sensitivity turns from positive to negative. A theoretical model based on Lorentz–Lorenz equation is presented to estimate the dependence of POFBG refractive index on temperature and relative humidity. The experimental results qualitatively agree with the theoretical analyses.



2021 ◽  
Vol 21 (2) ◽  
pp. 1534-1539
Author(s):  
Stenio Aristilde ◽  
Marco Cesar Prado Soares ◽  
Thiago D. Cabral ◽  
Gildo Rodrigues ◽  
Eric Fujiwara ◽  
...  


2020 ◽  
Vol 130 ◽  
pp. 106357 ◽  
Author(s):  
Getinet Woyessa ◽  
Jens K.M. Pedersen ◽  
Kristian Nielsen ◽  
Ole Bang


2020 ◽  
Vol 146 (9) ◽  
pp. 04020082
Author(s):  
Róisín M. Buckley ◽  
Ross A. McAdam ◽  
Byron W. Byrne ◽  
James P. Doherty ◽  
Richard J. Jardine ◽  
...  


2020 ◽  
Vol 69 (7) ◽  
pp. 4387-4394
Author(s):  
Arjita Das ◽  
Shikha Ambastha ◽  
Saurav Halder ◽  
Sudip Samanta ◽  
Nagahanumaiah


2019 ◽  
Vol 53 ◽  
pp. 102015 ◽  
Author(s):  
Natalia Reggiani Manzo ◽  
Gabriel T. Callado ◽  
Cristiano M.B. Cordeiro ◽  
Luiz Carlos M. Vieira Jr.


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