Raman and line centre oscillation selection in coherently pumped four-level fir lasers |
| |
| Authors: | M.A. Dupertuis R.R.E. Salomaa M.R. Siegrist |
| |
| Affiliation: | Centre de Recherches en Physique des Plasmas, Association Euratom - Confédération Suisse, Ecole Polytechnique Fédérale de Lausanne, 21, Av. des Bains, CH-1007 Lausanne, Switzerland |
| |
| Abstract: | Competition between Raman and line-centre oscillation in multilevel lasers pumped with coherent radiation off resonance is studied by means of semi-classical laser theory. In a four level system consisting of a combination of a Λ and V system, it is shown that simultaneous Raman and line centre oscillation is expected on one of the transitions contrary to the case of a simple three level system where the Raman line completely suppresses the line centre oscillation. The crucial importance of a new highly nonlinear phase locking effect for the behaviour of the system is demonstrated. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
