Article

Received 13.02.2025

Revised 12.04.2025

Accepted 28.06.2025

Retrieved from Vol. 29, No. 1, 2025

Pages 80 -87

Malysh, M., & Mozghovyi, O. (2025). Methods of optical signal modulation. The National Transport University Bulletin, 29(1), 80-87. https://10.33744/2308-6645-2025-1-60-080-087

Methods of optical signal modulation

Mуkola Malysh Oleksandr Mozghovyi

Various methods of optical signal modulation have been analyzed in order to increase the amount of information carried by a light beam. For light modulation, the effects of changing the refractive index of the 87 medium under the action of an external field have been proposed: electro-optical (Kerr and Pockels effects), magneto-optical (Faraday effect), when used, phase modulation of light occurs with its subsequent conversion into amplitude modulation. Research objective: to analyze the principle of operation of polarization modulators, to compare their technical characteristics. Research method – theoretical. It has been established that using electro-optical and magneto-optical effects, the polarization of light is changed for its further modulation. For polarization modulation of the light flux, it is advisable to use Faraday cells

light modulation; electropotic effect; magnetoptic effect; information transmission
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