电子束泵浦注入锁定XeCl准分子激光理论模拟  

THEORETICAL SIMULATIONS OF INJECTION LOCKING FOR THE ELECTRON-BEAM-PUMPED XeCl EXCIMER LASER

作　　者：高占鹏[1] 杨国龙[1] 屠琴芬[1] 张建泉[1] 

机构地区：[1]西北核技术研究所

出　　处：《强激光与粒子束》1993年第4期509-520,共12页High Power Laser and Particle Beams

摘　　要：模拟了强流电子束泵浦下,激光腔内的反应动力学过程,及不同注入时间、不同注入强度下注入锁定的激光生成、放大和输运过程。对实际非稳腔使用了一维伸展近似,并采用了预估—校正方法对光子输运方程进行求解。模拟结果表明,激光生成阶段,注入种子光源后,激光输出质量明显改善,使自发辐射部分受到了明显的抑制。得到了在不同注入强度、注入时间以及放大倍数下的激光输出的光谱特性,能量及各种效率的关系。发现锁定效果最佳时的注入时间出现在小信号增益峰值处。Simulations of kinetics in the laser cavity with electron-beam-pumping, also processes of laser production, amplification and transport in different injected fluxes and different inject time are presented. The one-dimensional approximation is used for the practical unstable resonator, and the transport equation is numerically integrated with the predictor -corrector method. The result shows that the quality of laser output is obviously improved with injected seed signal and the spontaneous emission is obviously. This simulation also demonstrates the spectral characteristic, the energy, and various efficiencies of the laser output. We also find that the injected time of the best locking efficiency is that moment when the small signal gain reaches the maximum value. The theoretical calculation of the laser output is in agreement with experiment of the parallel cavity and unstable resonator in different conditions.

关 键 词：注入锁定 准分子激光器 氯化氙 

分 类 号：TN248.22[电子电信—物理电子学]