RAMAN AND LINE CENTRE OSCILLATION SELECTION IN COHERENTLY PUMPED FOUR-LEVEL FIR LASERS
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 LAMBDA 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.
Bibliographic Reference: WRITE TO CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, CH-1007 LAUSANNE (SWITZERLAND), MENTIONING REPORT LRP 251-84, 1984
Record Number: 1989123034100 / Last updated on: 1987-01-01
Available languages: en