Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Pavel Cherpak"'
Publikováno v:
Applied Physics B. 127
A novel approach to the sensitive measurements of optical loss coefficients in metal-coated fibers in a wide wavelength range is introduced. It is based on measuring the change of temperature-dependent electrical resistance of the coating caused by l
Publikováno v:
2020 International Conference Laser Optics (ICLO).
The results of experiments on determination of the optical absorption coefficient at different wavelengths in a polysiloxane polymer, used in fiber optics, are presented. The process of thermal degradation as a result of exposure to high-power laser
Publikováno v:
2020 International Conference Laser Optics (ICLO).
A novel method for high-sensitive measurements of laser radiation attenuation in metal-coated optical fibers in a wide range of wavelengths is demonstrated. To study the dependences of optical losses on the fiber structure a number of single-mode and
Publikováno v:
Applied optics. 59(24)
Phase-matching temperature tuning curves and longitudinal temperature distribution of periodically poled lithium niobate (PPLN) crystal were measured in the process of second-harmonic generation (SHG) of 1070 nm pump wavelength using tiny transparent
Publikováno v:
EPJ Web of Conferences, Vol 238, p 11013 (2020)
We demonstrate a novel approach to the determination of optical loss coefficients in metal-coated fibers in a 0.4-1.9 μm wavelength range. It is based on measuring the change of temperature-dependent electrical resistance of the metal coating caused
Publikováno v:
Seventh European Workshop on Optical Fibre Sensors.
Autor:
Nikita Tereshchenko, Denis Mukhankov, Aleksandr Kostrov, Nikolay Vanyushkin, Oleg Ryabushkin, Renat Shaidullin, Pavel Cherpak
Publikováno v:
Seventh European Workshop on Optical Fibre Sensors.
In this paper we introduce a novel approach for the measurement of the intensity profile of high-power laser radiation, which does not require any preliminary attenuation. It is based on the application of the matrix made of multimode passive copper-
Publikováno v:
Journal of Physics: Conference Series. 1391:012144
We introduce a self-consistent model that describes the process of the second harmonic generation (SHG) of the laser radiation in a nonlinear-optical crystal in conditions of its nonuniform heating induced by optical absorption. A periodically poled
Autor:
Pavel, Cherpak, Grigoriia, Ivanov, Vanyushkina, Nikolay, Shaidullina, Renat, Ryabushkina, Oleg
Publikováno v:
Proceedings of SPIE; 9/19/2019, Vol. 11199, p1-4, 4p