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推导了描述稳态运行,具有腔内光放大的环形腔单共振光参量振荡器(ICOASRO)的功率特性的高斯光束理论.在这种结构的单共振光参量振荡器(SRO)中,适当地选择光放大器的参数,可以很大程度地降低单共振光参量振荡器的抽运阈值.在平均场近似下无二阶非线性交叉耦合作用的具有腔内光放大的环形腔单共振光参量振荡器的工作范围分成四个工作区域,且存在最小的单共振光参量振荡器的抽运阈值.文中的分析考虑了作为光放大器的激光增益介质的端面抽运特性,考虑了一般化单共振光参量振荡器的特性.
A Gaussian beam theory is presented that describes the power characteristics of an ICOASRO with steady-state operation and with intracavity optical amplification. In a single resonant optical parametric oscillator (SRO) of this structure, properly The parameters of the optical amplifier can be used to reduce the pumping threshold of the single resonant optical parametric oscillator to a great extent.Under the average field approximation, the single resonant optical parametric oscillation of the annular cavity with intracavity optical amplification without second-order nonlinear cross-coupling The working range of the device is divided into four work areas, and there is a minimum pumping threshold of a single resonant optical parametric oscillator.The analysis in this paper considers the end-face pumping characteristics of the laser gain medium as an optical amplifier, considering the generalized single resonant light Parametric oscillator characteristics.