Gnatenko, A. S.Machekhin, Yu. P.Kurskoy, Yu. S.Obozna, V. P.Vasianovych, A. V.2021-03-072021-03-072018Ring fiber lasers for telecommunication systems / A. S. Gnatenko, Yu. P. Machekhin, Yu. S. Kurskoy, V. P. Obozna, A. V. Vasianovych // Telecommunications and Radio Engineering. - Vol.77, No6. - P. 541-548.http://openarchive.nure.ua/handle/document/14799The goal of this research is to study the interactions between a laser radiation and a liquidcrystal cell and to ensure the mode-locking in a ring fiber laser. In this paper we discuss how a non-linear polarization rotation in ring fiber lasers can be used to achieve the mode-locking. By supplying voltage to a liquid-crystal cell, we studied the polarization behavior both in theory and through experiment. Optical circuit of the ring fiber laser has been suggested.enmode-lockingpolarizationstabilityradiation intensityArticle