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用随时间变化的氙灯辐射光谱模型 ,建立了组合式钕玻璃片状激光放大器动态增益特性的模拟程序 ,实现了从氙灯放电到引出激光的全过程动态模拟 ,可用于片状激光放大器的优化设计 .研究了 :1)放大器在不同的抽运条件下水平方向的增益均匀性 ,当氙灯爆炸系数比较高时 ,自发辐射放大优先使片的边缘产生消抽运作用 ,增益分布变得不均匀 ,通光口径的中央处增益较大 ;2 )片厚度和掺杂浓度对增益性能的影响 ,在相同的抽运条件下 ,储能通量由片厚度与掺杂浓度的乘积决定 ,给出了储能通量和小信号增益随片厚度与掺杂浓度的乘积的变化关系
The xenon lamp radiation spectrum model with time is used to establish the simulation program of the dynamic gain characteristics of the combined neodymium glass flake laser amplifier. The whole simulation process from xenon lamp discharge to laser extraction can be used to optimize the design of the chip laser amplifier The main conclusions are as follows: 1) The gain uniformity of the amplifier under different pumping conditions in the horizontal direction shows that when the explosion factor of xenon lamp is relatively high, the spontaneous emission enlargement preferentially causes the edge of the chip to generate pumping operation and the gain distribution becomes uneven, 2) The influence of sheet thickness and doping concentration on gain performance. Under the same pumping conditions, the energy storage flux is determined by the product of sheet thickness and doping concentration, Energy storage flux and small signal gain with the thickness of the film and doping concentration of the product of the relationship