EFFECT OF THE APODIZATION OF THE SHIFT PERIODIC BRAGG LATTICE ON THE POLARIZATION-MODE DISPERSION
Yessenbek S. Kussambayeva N. Kassimov А. Abdurazak K.
October 2022Asian Research Publishing Network
ARPN Journal of Engineering and Applied Sciences
2022#17Issue 191796 - 1799 pp.
This article discusses the signal delay during transmission over a fiber-optic communication line and ways to reduce group delays at high transmission speeds using Bragg gratings. The contradiction between the need to transmit signals over fiber-optic communication lines and the resulting dispersion and group delay gives rise to the problem of developing the necessary calculation of the parameters of Bragg grids. The study aims to reduce the variance by determining the corresponding parameters of Braggs lattice. There are several structures of fiber-optic Bragg gratings, for example, short-period and long-period gratings, slanted gratings, and alternating-period gratings with variable chirps. Variable-period gratings are used in optical networks, mainly to compensate for dispersion. The production of changeableperiod (chirp) gratings consists of the narrowing and bending of the optical fiber during the application process and the linear stretching of the phase mask obtained by heating. In the production of the grid, chirp phase masks with a variable period are also used.
Bragg gratings , chirp , dispersion , distortion , modeling , optical fiber
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Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
Academy of logistics and transport, Almaty, Kazakhstan
Almaty University of Power Engineering and Telecommunications
Academy of logistics and transport
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