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根据 L D泵浦准三能级系统的特性 ,从准三能级的速率方程理论出发 ,按照推导出的 L D端泵准三能级系统的阈值功率和输出功率及斜效率的表达式 ,详尽讨论了泵浦光椭圆高斯分布下椭圆度对阈值功率和输出功率及斜效率的影响 ,并与泵浦光圆高斯分布时进行了比较。由此得到的结论在实验设计中可用来进行优化设计 ,具有较强的实际指导意义。
According to the characteristics of quasi-three-level system of LD pump, starting from the quasi-three-level rate equation theory, the threshold power, output power and slope efficiency of LD quasi-three-level system are discussed in detail The influence of ellipticity on threshold power, output power and slope efficiency under elliptical Gaussian distribution of pump light is compared with that of pump light Gaussian distribution. The conclusion obtained from this can be used in the experimental design to optimize the design, which has strong practical significance.