Application of integration of hybrid optoelectronic technologies in the next generation networks

DOI: 10.31673/2412-4338.2018.042031

Authors

  • Я. А. Кременецька, (Kremenetska Ya. A.) State University of Telecommunications, Kyiv
  • С. Ю. Марков, (Markov S. Yu.) State University of Telecommunications, Kyiv
  • С. В. Морозова, (Morozova S. V.) State University of Telecommunications, Kyiv
  • Д. М. Морозов, (Morozov D. M.) State University of Telecommunications, Kyiv

Abstract

 The paper discusses the use of hybrid optoelectronic technology in the telecommunications of the future. These technologies are applicable as methods of optoelectronic generation of a radio signal, methods of modulating optical radiation with an RF signal and methods of transmitting an radio frequency signal over long distances via fiber optic lines. The paper compares heterodyning to obtain radio frequency signal; the advantages and disadvantages of these methods are shown; describes the methods of generating a radio frequency signal, which use a Mach-Zehnder modulator, shows the advantages of these methods in terms of noise characteristics and frequency multiplication factor. The data showing the current level of achievements of hybrid optoelectronic technologies. For the scheme for obtaining a quadrature modulated signal of the millimeter wavelength range, an expression is written for the voltage at the output of the modulator; decomposition of this voltage into rows by harmonics of the radio-frequency modulating signal; the values of the coefficients of the first harmonics are found, which allows us to estimate the amplitudes of the signals at the modulator output for given harmonic components. The calculation results show that the amplitudes of the first harmonics are sufficient to generate a radio frequency signal; given structural diagrams to generate radio frequency signals with the possibility of multiplying the frequency of 2, 4, 6, 8 times. It is noted that phase distortions, non-linearity of the characteristics of receiving and transmitting equipment can limit the practical use of spectral-effective types of modulation. It is shown that the study of the configuration of systems based on hybrid fiber - wireless technologies, modulation and multiplexing methods with polarization separation for wireless communication channels in the millimeter range are promising directions for finding solutions to increase the capacity of telecommunication systems.

Keywords: optoelectronic technology, optical heterodyning, Mach-Zehnder modulator, frequency multiplication factor.

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Published

2019-07-06

Issue

No. 4 (2018)

Section

Articles