Open AccessАсимметричная генерация в сверхизлучающем лазере с симметричным низкодобротным резонатором
Author(s) -
V. V. Kocharovskiĭ,
В.А. Кукушкин,
С.В. Тарасов,
Е.Р. Кочаровская,
В.В. Кочаровский
Publication year - 2019
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2019.10.48284.30
Subject(s) - physics , population inversion , polarization (electrochemistry) , point reflection , grating , population , electromagnetic radiation , quantum electrodynamics , superradiance , electromagnetic field , wavelength , nonlinear system , laser , condensed matter physics , optics , quantum mechanics , chemistry , demography , sociology
On the basis of numerical solution to the Maxwell-Bloch equations within an one-dimensional two-level model of a superradiant laser with a symmetric cavity where a photon lifetime is less than an incoherent relaxation time of the optical dipole oscillations of active centers, we find that a spontaneous asymmetric generation of the counter-propagating waves is possible under a continuous homogeneous pumping of an active medium. We show that such a phenomenon of a symmetry breaking of the spatial profiles of the counter-propagating waves of an electromagnetic field as well as the polarization and population inversion of an active medium in the considered case of a weak inhomogeneous broadening of an operating transition is caused by an asymmetric half-wavelength nonlinear grating of the population inversion of the transition’s energy levels which is produced by these waves.