Output beam propagation and beam quality from a multimode stable-cavity laser
Output beam propagation and beam quality from a multimode stable-cavity laser
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DOI：
10.1109/3.214507
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发表时间：
1993-04
影响因子：
2.5
通讯作者：
A. Siegman;S. Townsend
中科院分区：
文献类型：
--
作者：
A. Siegman;S. Townsend
本文给出了高功率CO/sub 2/激光器的实验数据，证实了对大口径多模稳定腔激光振荡器输出光束的发散角和光束质量进行简单分析的正确性。多模光束的参数可以从一个简单的理论准确地预测使用的稳定腔的几何参数。这些数据还表明，这种类型的激光器具有均匀的增益分布在整个管孔优先振荡的最高阶模式允许的激光腔，而不是，例如，均分的输出功率之间的所有允许的腔模式。>
The authors present experimental data for a high-power CO/sub 2/ laser which confirm the validity of a simple analysis for the beam divergence and beam quality of the output beam from a large-bore multimode stable-cavity laser oscillator. The multimode beam parameters can be accurately predicted from a simple theory using only the geometrical parameters of the stable resonator. The data also suggest that a laser of this type with a uniform gain profile across the tube bore oscillates preferentially in the highest order modes allowed by the laser cavity rather than, for example, equipartitioning the output power among all the allowed cavity modes. >