RT Journal Article ID 791bd7fe7af405cc A1 Gnatenko, A. S. A1 Machekhin, Yu. P. A1 Kurskoy, Yu. S. A1 Obozna, V. P. A1 Vasianovych, A. V. T1 RING FIBER LASERS FOR TELECOMMUNICATION SYSTEMS JF Telecommunications and Radio Engineering JO TRE YR 2018 FD 2018-06-06 VO 77 IS 6 SP 541 OP 548 K1 mode-locking K1 polarization K1 stability K1 radiation intensity AB The goal of this research is to study the interactions between a laser radiation and a liquid-crystal 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. PB Begell House LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,5683bf3b4499c79b,791bd7fe7af405cc.html