纵向抽运Cr^(3+)∶LiSAF_6激光器小信号增益的理论研究  

A Theoretical Study of Small Signal Gain of Longitudinal Pumped Cr^(3+)∶LiSAF_6 Laser

作　　者：赵卫疆[1] 张华[1] 周耕夫[1] 赵旭光[1] 于俊华[1] 

机构地区：[1]哈尔滨工业大学光电子技术研究所可调谐激光技术国家重点实验,哈尔滨150001

出　　处：《光学学报》2001年第1期32-35,共4页Acta Optica Sinica

摘　　要：提出了计算小信号增益的理论模型 ,用来研究纵向Cr3+∶LiSAF6激光器中抽运聚焦特性对小信号增益的影响。对Cr3+∶LiSAF6晶体小信号增益进行了最佳化计算 ,求出了几种给定抽运功率下腰斑半径和焦点位置的最佳值。计算结果表明 ,在最佳化条件下Cr3A theoretical model was developed to calculate small signal gain, and was used to investigate the influence of focusing condition on the small signal gain for longitudinal pumped Cr 3+ ∶LiSAF 6 laser. We optimized the small signal gain of Cr 3+ ∶LiSAF 6 crystal, obtained optimum values of waist radii and focus positioons under given pumping powers. The calculated results proved that the optimization greatly improved the small signal gain perforonance of Cr 3+ ∶LiSAF 6 crystal.

关 键 词：小信号增益腰斑半径 抽运聚焦特性 固体激光器 

分 类 号：TN248.1[电子电信—物理电子学]