Category Archives: Статья

New high-reliability optical transmission modules based on powerful superluminescent diodes in the spectral range 1.5 – 1.6 μm

D. R. Sabitov, V. N. Svetogorov, Yu. L. Ryaboshtan, M. A. Ladugin, A. A. Marmalyuk, M. G. Vasil’ev, A. M. Vasil’ev, Yu. O. Kostin, A. A. Shelyakin LLC Sigm Plus, 117342, Moscow, Russia Peoples’ Friendship University of Russia, 117198, Moscow, Russia National Research Nuclear University MEPhI, 115409, Moscow, Russia Kurnakov Institute of General and Inorganic… Read More »

Differentiation and integration of images in different channels using one acousto-optic filter

V. M. Kotov, S. V. Averin, A. A. Zenkina, A. S. Belousova, M. V. Karachevzeva, A. N. Bulyuk Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences, 141190, Fryazino, Moscow oblast, Russia Abstract: We report a theoretical and experimental investigation of two-dimensional Fourier processing of an image using two channels when the… Read More »

The influence of the mode intensity profile on the population kinetics of terbium ion levels and the excitation of luminescence in a few-mode chalcogenide fiber

E. A. Romanova, N. Parshina, V. S. Shiryaev Chernyshevsky Saratov National Research State University, 410012, Saratov, Russia Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod Abstract: Based on the concepts of the wave theory of optical fibers, the excitation of luminescence in a few-mode fiber made of chalcogenide glass doped with terbium ions is… Read More »

Generation of supercontinuum in a nonlinear fiber light guide. Controlling the Raman soliton wavelength by controlling the polarization state of the pump pulse

D. A. Korobko, I. S. Panyaev, P. A. Itrin, I. O. Zolotovskii Ulyanovsk State University, 432017, Ulyanovsk, Russia Abstract: The problem of generating ultrashort Raman solitons with a wavelength in the range of 1600 – 1700 nm, which are formed in a nonlinear fiber when splitting a high-power pump pulse with a wavelength of ∼1550… Read More »

Lasing from molecular nitrogen ions at a wavelength of 391.4 nm in laser plasma

I. A. Zyatikov, V. F. Losev Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia Abstract: We report results of experimental studies on spectral, temporal, energy and spatial characteristics of coherent radiation at a wavelength of 391.4 nm [B2∑+u(0) – X2∑+g(0) transition of molecular nitrogen ion]. Lasing occurs in pure… Read More »

On the interference of femtosecond laser pulses during noncollinear acousto-optic interaction

K. B. Yushkov, A. I. Chizhikov, V. Ya. Molchanov University of Science and Technology MISIS, 119049, Moscow, Russia Abstract: A method for coherent combining of two femtosecond laser beams based on acousto-optic interaction is proposed. Experimental studies demonstrated a stationary interference pattern of two beams at the output of the acousto-optic cell if the ultrasound… Read More »

Monitoring the temperature of silicon nanoparticles in liquid by Raman scattering method with nanosecond pulsed laser excitation

N. S. Pokryshkin, I. D. Kuchumov, V. G. Yakunin, V. Yu. Timoshenko Faculty of Physics, Lomonosov Moscow State University National Engineering Physics Institute MEPhI Engineering and Physics Institute of Biomedicine, Moscow Abstract: Photoinduced pulsed heating of silicon nanoparticles suspension (NPs) excited by continuous and pulsed nanosecond laser radiation was studied with the use of Raman… Read More »

Phase-modulated transmission format with non-central chirp over high-speed optical link communication without dispersion compensation

E. G. Shapiro, D. A. Shapiro Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk Abstract: A communication line without dispersion compensation is considered. A new type of phase-modulated format in which the Gaussian pulses with varying non-central chirp are transmitted is proposed. It is stated that there is a time… Read More »