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Multiple frequencies analysis in tasks of FBG based instantaneous frequency measurements
Author(s): Airat J. Sakhabutdinov; Oleg G. Morozov; Aleksandr A. Ivanov; Gennady A. Morozov; Rinat Sh. Misbakhov; Sergey V. Feofilaktov
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Paper Abstract

This article describes the design principles of optoelectronic system for instantaneous frequency measurement of microwave signals based on the use of amplitude-phase modulation conversion of single optical carrier into symmetrical dual-frequency ones for additional frequency separation according its wavelength, its modulation by unknown frequency and subsequent “frequency-amplitude” measurement conversion in fiber Bragg grating with Gaussian reflection profile along with the variations of schemes for realization of this method with the corresponding spectrums. Such approach increases the signal-to-noise ratio and allows measuring of several unknown frequencies simultaneously. Distinction and measurement of the instantaneous frequencies made depending on the amplitudes and modulation indexes of the signals received at the photodetector.

Paper Details

Date Published: 6 June 2018
PDF: 8 pages
Proc. SPIE 10774, Optical Technologies in Telecommunications 2017, 107740Y (6 June 2018); doi: 10.1117/12.2318741
Show Author Affiliations
Airat J. Sakhabutdinov, Kazan National Research Technical Univ. (Russian Federation)
Oleg G. Morozov, Kazan National Research Technical Univ. (Russian Federation)
Aleksandr A. Ivanov, Kazan National Research Technical Univ. (Russian Federation)
Gennady A. Morozov, Kazan National Research Technical Univ. (Russian Federation)
Rinat Sh. Misbakhov, Kazan State Power Engineering Univ. (Russian Federation)
Sergey V. Feofilaktov, JSC IRZ, IRZ TEK, Ltd. (Russian Federation)


Published in SPIE Proceedings Vol. 10774:
Optical Technologies in Telecommunications 2017
Vladimir A. Andreev; Anton V. Bourdine; Vladimir A. Burdin; Oleg G. Morozov; Albert H. Sultanov, Editor(s)

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