钛宝石激光器像散补偿角的选择分析  

Analysis on the Choice of Aberration Compensation Angle of Ti:S Lasers

作　　者：董淑福[1] 门健[1] 张锐[1] 陈国夫[2] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077 [2]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,陕西西安710068

出　　处：《激光与红外》2006年第2期111-113,共3页Laser & Infrared

基　　金：国家自然科学基金;学院学术基金资助项目 (60007003;120047)。

摘　　要：以连续运转四镜折叠腔Ti:S激光器为例,运用传输矩阵,对两个典型折叠角计算公式进行了分析。结果表明,两公式的计算结果与运用传输矩阵所得结果有不同程度的差异。当系统设计在第一稳区中心附近时,(2)式所得结果具有比较好的近似,但输出光斑大。为了获得小的光斑,系统应设计在第二稳区中心附近,但除在特定条件(如R=250mm、l=400mm)下 (1)式有比较好的近似效果外,其它情形两公式的差异都较大。Analysis is done to the two typical fobrmulas to calculate the folded angle using the CW operation four-mirror folded cavity as an example. Compared with the results calculated from the ABCD matrix, there are some differences at various extents for the results from these two formulas. When the system is designed to work near the center of the first stable region, formula （2） has good approximation but the output beam spot at the output mirror is bigger under this condition. In order to achieve little beam spot, the system should be designed to work near the center of second stable region. However, a little difference appeared for the angles calculated from formula （ 1 ） and （ 2 ） except for some specific conditions （R = 250ram, l = 400ram） for formula （ 1 ）.

关 键 词：钛宝石 连续波激光器 像散补偿 

分 类 号：TN248.1[电子电信—物理电子学]