Abstract
A novel method is proposed for selecting a single longitudinal mode in lasers with homogeneously broadened gain medium. Mode selection is achieved by the interaction of the standing cavity wave between the gain medium and a spatially saturated absorber. The theory is treated in detail for various geometric configurations including examples of important laser systems under continuous-wave operation, such as dye lasers.
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Kühlke, D., Dietel, W. Mode selection in a spectrally homogeneously broadened CW laser due to spatially inhomogeneously saturable absorption. Opt Quant Electron 10, 283–291 (1978). https://doi.org/10.1007/BF00620116
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DOI: https://doi.org/10.1007/BF00620116