A. L. Khvalin

V.G. Shadrov - Ph.D. (Phys.-Math.), Leading Research Scientist, Scientific-Practical Materials Research Centre (Minsk) A.E. Dmitrieva - Junior Research Scientist, Scientific-Practical Materials Research Centre (Minsk) A.V. Boltushkin - Ph.D. (Phys.-Math.), Senior Research Scientist, Scientific-Practical Materials Research Centre (Minsk). E-mail: nemtsevich@ifttp.bas-net.by

E. A. Mikhalitsyn - Post-graduate Student of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev; Research Engineer 3rd cat., FSUE FRPC - Measuring System Research Institute n.a. Yu.Ye. Sedakov - (Nizhny Novgorod). E-mail: mihalitsynea@gmail.com A. S. Raevsky - Dr.Sc. (Phys.-Math.), Professor, Head of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev. E-mail: raevsky@nntu.nnov.ru A. Yu. Sedakov - Dr.Sc. (Eng.), Associate Professor, Professor of Department of Physics and Technology of Optical Communication, Nizhny Novgorod State Technical University n.a. R.E. Alekseev; Director of FSUE FRPC - Measuring System Research Institute n.a. Yu.Ye. Sedakov - (Nizhny Novgorod). E-mail: niiis@niiis.nnov.ru

А.А. Shpilevoy - Ph.D. (Phys.-Math.), Assistant Professor A.A. Persichkin

V. I. Dobisov1, N. V. Rastvorova2, A. M. Rudakov3, O. M. Terekhova4

1–4  JSC “V. Tikhomirov Scientific Research Institute of Instrument Design” (Zhukovsky, Russia)

G.B. Itigilov1, D.Sh. Shirapov2, V.A. Kravchenko3

1–3 East Siberia State University of Technology and Management (Ulan-Ude, Russia)

1 gablz@mail.ru, 2 shir48@mail.ru, 3 krawyach@mail.ru