Influence of active medium on the mode structure of optical resonator near the loss degeneracy point

Nickolai N. Elkin; V. ok Korotkov; Anatoly P. Napartovich; Vera N. Troshchieva

doi:10.1117/12.18439

1 June 1990 Influence of active medium on the mode structure of optical resonator near the loss degeneracy point

Nickolai N. Elkin, V. ok Korotkov, Anatoly P. Napartovich, Vera N. Troshchieva

Proceedings Volume 1224, Optical Resonators; (1990) https://doi.org/10.1117/12.18439
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Mode competition in confocal unstable resonators loaded with gain-saturable active medium is discussed. Confocal unstable resonators with magnification M = 2 are investigated, with attention focused on resonators with Neq = 3.8924. A numerical approach for searching efficiently stable solutions in cases where the traditional iterative method converges too slow is employed. Two active-medium models, the Rigrod model and CO(2) flow laser model are utilized. Ranges of resonator and medium parameters for stable one-mode lasing are determined. Similar calculations are performed for unstable axisymmetric confocal resonators.

Citation Download Citation

Nickolai N. Elkin, V. ok Korotkov, Anatoly P. Napartovich, and Vera N. Troshchieva "Influence of active medium on the mode structure of optical resonator near the loss degeneracy point", Proc. SPIE 1224, Optical Resonators, (1 June 1990); https://doi.org/10.1117/12.18439

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