%0 Journal Article %T Engineering computation of fiber laser focusing system %A Bogdanov, A.V. %A Vasiltsov, V.V. %A Golubenko, Y.V. %K laser-optical system, optimum focal distance, beam diameter of laser emission, fiber laser %J Science intensive technologies in mechanical engineering %D 2019 %N 2019 %P 3 %I Bryansk State Technical University