I.I. Lavrenyuk – Engineer, Institute of Physics, Nanotechnology and Telecommunications  of Peter The Great St. Petersburg Polytechnic University

E-mail: knaiser@mail.ru

A.S. Ovsyannikova – Engineer, Institute of Physics, Nanotechnology and Telecommunications  of Peter The Great St. Petersburg Polytechnic University

E-mail: anny-ov97@mail.ru

M.A. Sivers – Dr.Sc.(Eng.), Professor, Bonch-Bruevich Saint-Petersburg State University of Telecommunications E-mail: nadir@fppk.ru

A.V. Blinov – Dr.Sc.(Eng.), Professor, Institute of Physics, Nanotechnology and Telecommunications  of Peter The Great St. Petersburg Polytechnic University E-mail: blinov.av@gmail.com