Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Dynamics of three-level optically pumped lasers

W. Forysiak

Published Jan 1, 1989• 0 citations
OpenAlex

Related papers

Very low instability threshold in a three-level laser model with incoherent optical pumping

Eugenio Roldán

Optics Communications•Nov 1, 1997•6 citations

Dynamics in a Four-Level Laser System

Donna Maree Sheppard

•Jan 1, 1993•0 citations

Dynamics of an optically pumped three-level laser with pump and generated gaussian beams

Jordi Cortit, R. Corbalán

We study numerically a single-mode homogeneously broadened three-level model for a coherently pumped laser in a ring cavity with pump and generated fields having gaussian transverse profiles. For a range of parameters suitable for a NH3 laser, we find dynamics in the phase space provided that the radius of the pump field is small compared with the beam waist of the generated field. Otherwise, we find that the laser emits a constant intensity output.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Jul 6, 1994•0 citations

Polarization-Sensitive Population Trapping in an Optically Pumped Laser

Eugenio Roldán, Ramon A. Vilaseca, Germán J. de Valcárcel +3 more

As we have shown recently /1/, the efficiency of an optically pumped laser is strongly sensitive to the structure of the atomic (or molecular) levels involved in the amplifying process, in particular to M-degeneracy. Specifically, when the common level b shared by the pump and laser transitions in a typical three-level configuration (Fig.1) has two sublevels m=±1 and the pump and laser fields are both linearly polarized (such as in the case, for instance, of the ammonia farinfrared laser /2/), there is a large difference in the dynamics of the laser when the pump and laser field polarizations are parallel or orthogonal /1,2/.

Nonlinear Dynamics in Optical Systems•Jan 1, 1992•0 citations

Spatiotemporal dynamics of three-level inversionless lasers

J. Mompart, V. Ahufinger, R. Corbalán +3 more

Springer eBooks•Jan 1, 2003•1 citation

FULL QUANTUM THEORY OF OPTICALLY PUMPED THREE-LEVEL LASER

Guo Guang-Can, 中国科学技术大学物理系

The Langevin quantum theory has been used to treat the optically pumped three-level laser system. We derive an equation of motion for laser field in the type of Van der Pol equation when the photon number of the laser field is not too high. It includes not only both incoherent and coherent pumping, but also both strong and weak optical pumping. If an average over reservoir is taken, the equation will give all the semi-classical results. Our results show that the laser gain comes from two basic processes, i.e., a two-photon process and a two-step process. When the pumping strength is larger than some value, the dynamic Stark effect will appear. The laser linewidth is mainly contributed by the thermal noise, the vaecum fluctuation, the spontaneous emissions between the laser levels and the spontaneous Raman scattering.

Acta Physica Sinica•Jan 1, 1984•0 citations
As we have shown recently /1/, the efficiency of an optically pumped laser is strongly sensitive to the structure of the atomic (or molecular) levels involved in the amplifying process, in particular to M-degeneracy. Specifically, when the common level b shared by the pump and laser transitions in a typical three-level configuration (Fig.1) has two sublevels m=±1 and the pump and laser fields are both linearly polarized (such as in the case, for instance, of the ammonia farinfrared laser /2/), there is a large difference in the dynamics of the laser when the pump and laser field polarizations are parallel or orthogonal /1,2/.
The Langevin quantum theory has been used to treat the optically pumped three-level laser system. We derive an equation of motion for laser field in the type of Van der Pol equation when the photon number of the laser field is not too high. It includes not only both incoherent and coherent pumping, but also both strong and weak optical pumping. If an average over reservoir is taken, the equation will give all the semi-classical results. Our results show that the laser gain comes from two basic processes, i.e., a two-photon process and a two-step process. When the pumping strength is larger than some value, the dynamic Stark effect will appear. The laser linewidth is mainly contributed by the thermal noise, the vaecum fluctuation, the spontaneous emissions between the laser levels and the spontaneous Raman scattering.