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建立了宽带激光脉冲放大的物理模型.模型引入交叉弛豫时间表征不同频率响应下反转粒子与激光作用后重新形成分布的快慢,模型考虑的整体非均匀加宽、局部均匀加宽的混合加宽机理弥补了现有放大模型仅考虑均匀加宽的不足.基于此物理模型,开发了宽带激光传输放大的模拟设计软件CPAP,并讨论了在一定条件下此宽带模型可回归到窄带模型.
A physical model of broadband laser pulse amplification is established.The model introduces the cross relaxation time to characterize the speed of reformation of the particles after the inversion of the particles and the laser at different frequency responses.The model considers the overall heterogeneous broadening and the local uniform broadening mixed The wide mechanism compensates for the shortcoming that the existing amplification model only considers the uniform widening. Based on this physical model, CPAP, an analog simulation software for wideband laser transmission amplification, is developed. The broadband model can be regressed to narrowband under certain conditions.