TELKOMNIKA Telecommunication, Computing, Electronics and Control
Apodization sensor performance for TOPAS fiber Bragg grating

TELKOMNIKA Telecommunication, Computing, Electronics and Control
Apodization sensor performance for TOPAS fiber Bragg grating

Apodization
Fiber Bragg grating
Sensitivity
Sensor
TOPAS

Optical sensors have more capabilities than electronic sensors, and therefore

provide extraordinary developments, including high sensitivity, non-
susceptibility to electromagnetic wave disturbances, small size, and

multiplexing. Furthermore, fiber Bragg grating (FBG) is an optical sensor
with a periodically changing grating refractive index, susceptible to strain
and temperature changes. As a sensor, FBG’s performance required to
optimize and improve the numerical apodization function and affect the
effective refractive index is considered. The grating fiber’s apodization
function can narrow the full width half maximum (FWHM) and reduce the
optical signal’s side lobes. In all the apodization functions operated by FBG,
Blackman has the highest sensitivity of 15.37143 pm/°C, followed by
Hamming and Gaussian, with 13.71429 pm/°C and 13.70857 pm/°C,
respectively, and Uniform grating fiber with the lowest sensitivity of
12.40571 pm/°C. Hamming, Uniform, and Blackman discovered the
sensitivity for a strain to be 1.17, 1.16, and 1.167 pm/microstrain,
respectively. The results obtained indicated that apodization could increase
FBG’s sensitivity to temperature and strain sensors. For instance, in terms of
other parameters, FWHM width, Hamming had the narrowest value of 0.6
nm, followed by Blackman with 0.612 nm, while Uniform had the widest
FWHM of 1.9546 nm.

Toto Saktioto, Khaikal Ramadhan, Yan Soerbakti, Romi Fadli Syahputra, Dedi Irawan, Okfalisa

http://journal.uad.ac.id/index.php/TELKOMNIKA

Sep 11, 2021

peri irawan

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