Radiation polarization and ferromagnetic ordering in a semiconductor laser

A theoretical investigation is presented of the possibility of polarization of semiconductor laser radiation due to magnetization of the electronic subsystem, when charge density waves and spin density waves coexist in the system. It is shown that such polarization has a non-zero value only if there is a spin-orbit interaction. An examination of photon spectra shows that photon instability is not eliminated by taking account of Coulomb interactions and ferromagnetic ordering. Thus, strictly speaking, the results obtained are valid only qualitatively when finite dampings in the electronic and photonic subsystems are taken into account.