Author Archives: admin_q

Noise impact on the process of multimode beam retrieval by the modal decomposition method

K. V. Serebrennikov, M. D. Gervaziev, A. Yu. Kokhanovskiy, M. K. Nevaev, A. A. Revyakin, D. S. Kharenko Novosibirsk State University, Novosibirsk, Russia Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia ITMO University, St. Petersburg, Russia Center of Financial Technologies, St. Petersburg, Russia Abstract: Today, the development of tools for… Read More »

Lasing spectrum narrowing in a seven-core fiber laser with an array of Bragg gratings inscribed by femtosecond pulses

A. G. Kuznetsov, A. A. Wolf, O. N. Egorova, S. L. Semenov, A. V. Dostovalov, E. V. Podivilov, S. A. Babin Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia Prokhorov General Physics Institute, Russian Academy of Sciences, 119991, Moscow, Russia Abstract: The paper examines lasing regimes of a 7-core… Read More »

Stabilization of narrow-band operation of semiconductor DFB laser self-injection locked to a PM fiber ring cavity

I. S. Panyaev, P. A. Itrin, D. A. Korobko, A. A. Fotiadi Ulyanovsk State University, Ulyanovsk, Russia Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia Abstract: This work presents a scheme for narrowing and stabilizing the narrow-band emission of a distributed feedback semiconductor laser diode achieved through its self-injection locking to an external fiber… Read More »

Fiber laser with a pulse repetition rate of up to 12 GHz and harmonic mode-locking stabilization through optoacoustic interaction

V. A. Ribenek, P. A. Itrin, D. A. Korobko, A. A. Fotiadi Ulyanovsk State University, Ulyanovsk, Russia Ioffe Institute, Russian Academy of Sciences, St. Petersburg, Russia Abstract: The study experimentally investigates resonance effects that arise when the frequency of one of the guided acoustic wave Brillouin scattering modes in an optical fiber aligns with the… Read More »

A narrow-linewidth holmium fiber laser with random distributed feedback based on artificial Rayleigh backscattering

S. R. Abdullina, M. I. Skvortsov, A. V. Dostovalov, K. V. Proskurina, Zh. E. Munkueva, S. A. Babin Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia Novosibirsk State University, 630090, Novosibirsk, Russia Abstract: The results of development and investigation of the characteristics of a holmium fiber laser generating at… Read More »

Effect of reactor irradiation on nitrogen-doped silica-core fibers and fiber Bragg gratings based on them

O. V. Butov, A. N. Fedorov, I. A. Shevtsov, Yu. K. Chamorovsky, S. A. Nikitov Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 125009, Moscow, Russia Prolog Ltd, 249033, Obninsk, Kaluga oblast, Russia Fryazino Branch, Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, 141120, Fryazino, Moscow oblast, Russia Abstract: We… Read More »

Optimization of the reflective surface shape of a variable curvature mirror

A. S. Mokeev Russian Federal Nuclear Center – All-Russian Research Institute of Experimental Physics, 607188, Sarov, Nizhny Novgorod oblast, Russia Abstract: We report a computational and theoretical study of the shape of a reflective surface of a variable curvature mirror (VCM) with a different thickness distribution along the mirror radius. An analytical expression is proposed… Read More »

The system of diffusion filling with hydrogen isotopes for a batch of spherical shells up to pressures of 1000 atm at 300 K

I. V. Aleksandrova, E. R. Koresheva, I. E. Osipov, S. M. Tolokonnikov Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia Zyfra LLC, Moscow, Russia Abstract: The current promising developments in controlled inertial fusion energy (IFE) are aimed at creating a power facility for mass fabrication of cryogenic fuel targets (CFT) and their high rep-rate… Read More »