Photonics

Evaluation of the thresholds of stimulated nonlinear scattered CW laser radiation in high-power fiber amplifiers

M. G. Slobozhanina, N. V. Bochkova, A. V. Bochkov, A. N. Slobozhanin

Russian Federal Nuclear Center E. I. Zababakhin All-Russian Scientific Research Institute of Technical Physics, 456770 Snezhinsk, Russia

Abstract: The paper describes a new approach for determining the threshold for stimulated nonlinear scattering in active and passive optical fibers. It is proposed to fix the power of the Stokes component at a certain level, which will make it possible to determine the threshold values of laser radiation powers, which characterize the manifestation of stimulated nonlinear scattering at the expected power level, in a convenient way from the applied point of view. Verification of the obtained expressions is given.

Keywords: stimulated nonlinear scattering, fiber amplifier, stimulated nonlinear scattering threshold.

Received: 16.06.2022
Revised: 09.09.2022
Accepted: 13.09.2022

DOI: 10.21883/JTF.2022.12.53758.161-22

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