Ti:sapphire laser cavity mode and pump-laser mode calculations.
Ti:sapphire laser cavity mode and pump-laser mode calculations.
复制标题
Ti：蓝宝石激光腔模式和泵浦激光模式计算。
作者：
Deborah M. Kane
本文报道了用ABCD高斯光束形式制得的Ti：蓝宝石激光器腔模尺寸的综合计算。这些计算表明，一般来说，光束在通常被称为激光腔的准直臂中是不准直的。此外，对用于Ti：蓝宝石激光光学泵浦的氩离子激光器的模式尺寸和体积（在增益介质中）进行了不同聚焦几何形状的评估，并生成了可用于选择合适的模式匹配光学器件的图形。结果表明，利用变焦望远镜对准直泵浦激光光束直径进行优化调整是泵浦光束与钛蓝宝石激光模式匹配的最佳策略。最后，比较了泵浦激光模式和钛蓝宝石激光模式的选择泵浦几何形状。
Comprehensive calculations of the cavity mode size throughout a Ti:sapphire laser, made with the ABCD Gaussian beam formalism are reported. These calculations show that the beam is not collimated, in general, in what are normally referred to as the collimated arms of the laser cavity. Additionally, the mode size and volume (in the gain medium) of the argon-ion laser, which is used to pump the Ti:sapphire laser optically, are evaluated for different focusing geometries, and graphs that can be used to select suitable mode-matching optics are produced. It is concluded that an appropriate strategy for mode matching the pump beam to the Ti:sapphire laser mode is to use a zoom telescope to tailor the collimated pump-laser beam diameter to an optimum value. Finally, comparisons of the pump-laser mode and the Ti:sapphire laser mode are presented for selected pumping geometries.