用Cr^(4+)∶YAG作调Q元件的激光器特性的研究  

Study on Passive Q-switching for CW Laser by Using Cr^(4+)∶YAG

作　　者：宋晏蓉[1] 李瑞宁[1] 刘媛媛[1] 赵建明[1] 周国生[1] 

机构地区：[1]山西大学电子系,太原030006

出　　处：《中国激光》2001年第6期487-490,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金 (编号 :10 0 740 41);山西省自然科学基金资助课题

摘　　要：用Cr4 +∶YAG作为调Q元件 ,采用腔内加透镜的方法 ,实现了Nd∶YAG调Q激光输出 ,得到了平缓、光滑的脉冲波形。从理论上分析了加透镜后激光腔内结构、腔参数对输出功率、脉宽等参数的影响。The method of making the CW laser with passive Q-switching by using a saturable absorber Cr4+:YAG was improved. Putting a lens in the laser cavity, the characteristics of the laser such as peak power and pulse width are changed. The size and position of the lens were discussed. The output power is varied with the coupling coefficient between the basic state and excited state of photons in the laser cavity and saturable absorber. The output pulse shape becomes smoothly.

关 键 词：调Q激光器 可饱和吸收体 Cr:YAG激光器 

分 类 号：TN248.13[电子电信—物理电子学] TN248.34