O.V. Stepanova1, A.I. Kuznetsov2, D.O. Lyalin3, M.I. Lukyanov4, O.S. Stepanova5, G.A. Konoplev6

1, 3–6 Department of Photonics, St. Petersburg Electrotechnical University “LETI” (St. Petersburg, Russia)
2 Ldiamon AS (Tartu, Republic of Estonia)
1ovstepanova@stud.eltech.ru; 3dolyalin@stud.eltech.ru; 4milukyanov@stud.etu.ru; 5osstepanova@etu.ru; 6gakonoplev@etu.ru