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Algorithm of FBG Spectrum Distortion Correction for Optical Spectra Analyzers with CCD Elements

1
Department of Radiophotonics and Microwave Technologies, Kazan National Research Technical University Named after A.N. Tupolev-KAI, K. Marx Str. 10, 420111 Kazan, Russia
2
Department of physics, College of Education for Pure Sciences, University of Karbala, Karbala 56001, Iraq
3
College of Dentistry, University of Mustansiriyah, Baghdad 14022, Iraq
*
Author to whom correspondence should be addressed.
Academic Editor: Damien Kinet
Sensors 2021, 21(8), 2817; https://doi.org/10.3390/s21082817
Received: 24 February 2021 / Revised: 22 March 2021 / Accepted: 15 April 2021 / Published: 16 April 2021
(This article belongs to the Special Issue Fiber Bragg Grating Sensors: Recent Advances and Future Perspectives)
Nonlinear spectrum distortions are caused by the peculiarities of the operation of charge-coupled device elements (CCD), in which the signal exposition time (Time of INTegration–TINT) is one of the significant parameters. A change of TINT on a CCD leads to a nonlinear distortion of the resulting spectrum. A nonlinear distortion of the spectrum, in turn, leads to errors in determining the central wavelength of fiber Bragg gratings (FBGs) and spectrally sensitive sensors, which, in general, negatively affects the accuracy of the measuring systems. This paper proposes an algorithm for correcting the nonlinear distortions of the spectrum obtained on a spectrum analyzer using CCD as a receiver. It is shown that preliminary calibration of the optical spectrum analyzer with subsequent mathematical processing of the signal makes it possible to make corrections in the resulting spectrum, thereby leveling the errors caused by measurements at different TINT. View Full-Text
Keywords: nonlinear spectrum distortions; signal exposition time; fiber Bragg grating; fiber Bragg sensors; fiber optic sensors; fiber optic interrogator; optical spectrum analyzer; charge-coupled device elements; CCD nonlinear spectrum distortions; signal exposition time; fiber Bragg grating; fiber Bragg sensors; fiber optic sensors; fiber optic interrogator; optical spectrum analyzer; charge-coupled device elements; CCD
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MDPI and ACS Style

Anfinogentov, V.; Karimov, K.; Kuznetsov, A.; Morozov, O.G.; Nureev, I.; Sakhabutdinov, A.; Lipatnikov, K.; Hussein, S.M.R.H.; Ali, M.H. Algorithm of FBG Spectrum Distortion Correction for Optical Spectra Analyzers with CCD Elements. Sensors 2021, 21, 2817. https://doi.org/10.3390/s21082817

AMA Style

Anfinogentov V, Karimov K, Kuznetsov A, Morozov OG, Nureev I, Sakhabutdinov A, Lipatnikov K, Hussein SMRH, Ali MH. Algorithm of FBG Spectrum Distortion Correction for Optical Spectra Analyzers with CCD Elements. Sensors. 2021; 21(8):2817. https://doi.org/10.3390/s21082817

Chicago/Turabian Style

Anfinogentov, Vladimir, Kamil Karimov, Artem Kuznetsov, Oleg G. Morozov, Ilnur Nureev, Airat Sakhabutdinov, Konstantin Lipatnikov, Safaa M.R.H. Hussein, and Mustafa H. Ali 2021. "Algorithm of FBG Spectrum Distortion Correction for Optical Spectra Analyzers with CCD Elements" Sensors 21, no. 8: 2817. https://doi.org/10.3390/s21082817

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