Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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STATISTICAL ANALYSIS OF THE INFLUENCE OF DELAY LINES MANUFACTURING INACCURACIES ON THE PROPERTIES OF FIBER-OPTIC BASEDCHIRP GENERETOR

Zachinyaev Y.V. 1 Gorbunov A.V. 1
1 Southern Federal University
The article presents the results of a research of nanosecond-width chirp pulse generator based on binary optical fiber structures. In particular the impact of a manufacturing intolerance of fiber-optic delay lines that are part of binary fiber-optic structures on the quality of the generated signals is assessed. The autocorrelation function sidelobe level of the of output chirp signals was chosen as the quality assess parameter. Since experimental evaluation of the required dependence is extremely difficult modeling is used as a research method. Modeling is done in MATLAB environment. The manufacturing intolerance of the delay lines was presented as a normally distributed random variable. As a result of research the distribution histograms of sidelobes of the autocorrelation function were obtained for different cases. The obtained results allow us to determine the extreme values of precision manufacturing delay lines to ensure a given level of side lobes of the autocorrelation function of the output signal.