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Theory of Raman gain spectrum transformations

机译:拉曼增益谱变换理论

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摘要

A theory describing the spectral characteristics of Raman lasers is presented. The foundation of the theory is anchored in the probabilistic nature of light-matter interactions. The Raman gain spectrum is predicted for the cases when the pump laser is oscillating in both a single longitudinal mode and multi-longitudinal mode configuration. The gain profile predicted in the two previous cases are shown to be equivalent to homogeneously and inhomogeneously broadened laser transitions, respectively. This theory is necessary to predict the behavior of Raman lasers when injection-seeding, mode-locking, or multi-frequency operation is desired. Detailed calculations are performed for the case where the pump laser medium in Nd:YAG and the Raman medium is Ba(NO_3)_2.
机译:提出了描述拉曼激光器光谱特性的理论。该理论的基础是光-物质相互作用的概率性质。对于泵浦激光器在单纵向模式和多纵向模式配置中都振荡的情况,预测了拉曼增益谱。在前两种情况下预测的增益曲线分别显示为均等和不均等加宽的激光跃迁。当需要注入种子,锁模或多频操作时,该理论对于预测拉曼激光器的行为是必要的。对于Nd:YAG中的泵浦激光介质和拉曼介质为Ba(NO_3)_2的情况进行详细计算。

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