Effect of longitudinal pump inhomogeneity on the energy characteristics of steady-state raman lasers |
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| Authors: | P. A. Apanasevich V. I. Dashkevich R. V. Chulkov G. I. Timofeeva |
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| Affiliation: | 1.B. I. Stepanov Institute of Physics,National Academy of Sciences of Belarus,Minsk,Belarus |
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| Abstract: | The energy characteristics of externally pumped Raman lasers are calculated taking inhomogeneities in the active medium into account. Equations for the power and steady-state lasing threshold in these systems as function of the parameters of the cavity, pump, and Raman active medium are obtained over the entire ranges of their possible variations. The conditions for applicability of the model of averaged (uniform) fields, which is widely used in the theory of Raman lasers, are determined and interrelations among the cavity parameters favor unidirectional lasing in ring cavity Raman lasers are identified. |
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