Open AccessАвтогенерация хаотического СВЧ-сигнала в спин-волновом оптоэлектронном генераторе
Author(s) -
А.Б. Устинов,
А.В. Кондрашов,
А.А. Никитин,
А.В. Дроздовский,
Б.А. Калиникос
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.11.46643.20nn
Subject(s) - microwave , yttrium iron garnet , generator (circuit theory) , chaotic , signal (programming language) , optics , physics , signal generator , spin wave , monochromatic color , materials science , optoelectronics , acoustics , condensed matter physics , computer science , power (physics) , quantum mechanics , voltage , artificial intelligence , ferromagnetism , programming language
—The self-generation of a chaotic microwave signal in a spin-wave optoelectronic generator has been experimentally investigated for the first time. The generator was a ring circuit, in the microwave path of which there was a spin-wave delay line on the film of an yttrium iron garnet (YIG) and a microwave amplifier. The optical path contained a fiber optic delay line. The nonlinear element of the generator was a film of YIG, which worked under the conditions of four-wave parametric interaction of spin waves. It has been shown that it is possible to generate monochromatic, periodic, quasi-periodic, and chaotic microwave signals by controlling the gain coefficient of the ring. The parameters characterizing the chaotic signal that are generated by the ring have been determined.