Related papers: Perturbation approach in Heisenberg equations for lasers

Perturbation approach in Heisenberg equations for lasers

URL: http://arxiv.org/abs/2201.02872v2
Date: Sun, 8 May 2022 08:40:34 GMT
Title: Perturbation approach in Heisenberg equations for lasers
Authors: Igor E. Protsenko and Alexander V. Uskov
Abstract summary: It is found that fluctuations of population significantly affect spontaneous and stimulated emissions into the lasing mode. The method can be applied to various resonant systems in quantum optics.
Score: 77.34726150561087
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Nonlinear Heisenberg-Langevin equations are solved analytically by operator Fourier-expansion for the laser in the LED regime. Fluctuations of populations of lasing levels are taken into account as perturbations. Spectra of operator products are calculated as convolutions, preserving Bose commutations for the lasing field operators. It is found that fluctuations of population significantly affect spontaneous and stimulated emissions into the lasing mode, increase the radiation rate, the number of lasing photons and broad the spectrum of a bad cavity thresholdless and the superradiant lasers. The method can be applied to various resonant systems in quantum optics.

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