This article is cited in 8 papers

XXIII International symposium ''Nanophysics and Nanoelectronics'', Nizhny Novgorod, March 11–14, 2019

On the asymmetric generation of a superradiant laser with a symmetric low-$Q$ cavity

Vl. V. Kocharovskii^a, V. A. Kukushkin^a, S. V. Tarasov^a, E. R. Kocharovskaya^a, V. V. Kocharovsky<sup>ab

a</sup> Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod
^b Texas A&M University, USA

Abstract: 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.

Keywords: superradiant semiconductor laser, asymmentric generation.

Received: 24.04.2019
Revised: 29.04.2019
Accepted: 29.04.2019

DOI: 10.21883/FTP.2019.10.48284.30

 English version: Semiconductors, 2019, 53:10, 1287–1294

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