Zobrazeno 1 - 10
of 22
pro vyhledávání: '"George V. Sinitsyn"'
Autor:
Andrew V. Lyakhnovich, Igor V. Semchenko, Andrey L. Samofalov, Maksim A. Podalov, George V. Sinitsyn, Alexandr Y. Kravchenko, Sergei A. Khakhomov
Publikováno v:
Photonics, Vol 11, Iss 2, p 163 (2024)
The reflection and transmission spectra of a metamaterial formed by omega-shaped elements with pre-calculated optimal parameters on a silicon substrate have been recorded in the terahertz range at oblique incidence for the s- and p-polarizations of t
Externí odkaz:
https://doaj.org/article/b5086141f5064492a1284cba0db562b0
Autor:
I. A. Utkin, George V. Sinitsyn, A.M. Goncharenko, S. A. Bystrimovich, F. V. Karpushko, S. A. Porukevich
Publikováno v:
Journal of Modern Optics. 39:1593-1598
A strong dispersive nonlinearity below the band gap in heavily doped bulk n-GaAs is observed for differnet donor impurities. Negative refractive index changes of up to −5 × 10−3 are obtained in the spectral range 880–900 nm, induced by light o
Publikováno v:
SPIE Proceedings.
Pump conditions optimization has been performed for one-stage EDFA with three-level forward pumping and quasi-twolevel backward pumping. The optimization allows to achieve low noise figure, high efficiency of pump power conversion and sufficiently wi
Autor:
Ilya A. Utkin, George V. Sinitsyn
Publikováno v:
SPIE Proceedings.
Dynamic behavior of the nonlinear Fabry-Perot interferometer with heavily doped n-GaAs internal layer under 20 ns laser pulses excitation has been studied. Optical bistability with less than 10 ns switch-OFF time has been demonstrated.
Autor:
S. P. Apanasevich, George V. Sinitsyn, M. A. Khodasevich, Yury A. Varaksa, A. V. Burak, A. V. Kazberuk, V. A. Klinouski, A. M. Goncharenko, A. V. Lyakhnovich
Publikováno v:
SPIE Proceedings.
Several types of switches based on optically bistable (OB) thin Fabry-Perot interferometers are reviewed. Applications for time-division multiplexing are proposed and demonstrated experimentally using both separate OB pixels and those coupled by tran
Publikováno v:
SPIE Proceedings.
Information-rate densities in optical communication systems are investigated on the base of the number-state model. Results of numerical simulation show that the considered characteristics increase monotonically with increasing signal power, reducing
Publikováno v:
SPIE Proceedings.
Application of wavelets is investigated with ultimate time-frequency resolution for laser communications. The optimum encoding method for reaching the maximum rate of information transmission is shown to be based on WAVE-wavelets.
Autor:
George V. Sinitsyn, A. V. Kazberuk
Publikováno v:
SPIE Proceedings.
The theoretical investigations of diffraction of light beams on phase sinusoidal diffraction gratin placed between parallel mirrors of a Fabry-Perot interferometer are carried out. The problem is solved on the basis of Maxwell equations in the approx
Publikováno v:
SPIE Proceedings.
The maximum achievable characteristics of optical communication systems with different kinds of pulse position modulation have been investigated within the framework of the number-state model. It is shown that the ultimate efficiency in optical syste
Autor:
S. P. Apanasevich, Yuriy A. Varaksa, A. V. Kazberuk, Andrey M. Goncharenko, M. A. Khodasevich, A. V. Lyakhnovich, George V. Sinitsyn, Anatoly S. Yasukevich, Alexander A. Dokutovich
Publikováno v:
SPIE Proceedings.
Principles of formation and controlled propagation of switching autowaves in optically bistable interference structures are considered. On this basis methods and devices are developed for read-in, storing, read-out, switching and transfer of informat