通过腔内柔性控制镜实现甜甜圈状激光束输出形成
Doughnut-like laser beam output formation by intracavity flexible controlled mirror.
作者信息
Cherezova T, Chesnokov S, Kaptsov L, Kudryashov A
出版信息
Opt Express. 1998 Aug 31;3(5):180-9. doi: 10.1364/oe.3.000180.
The formation of the given low loss and large beamwidth doughnut-like fundamental mode of stable resonator by an intracavity flexible mirror is discussed. The mirror is a bimorph one with one round and two ring controlling electrodes. An inverse propagation method is used to determine the appropriate shape of the controlled mirror. The mirror reproduces the shape with minimal RMS error by combining weights of experimentally measured response functions of the mirror sample. The voltages applied to each mirror electrode are calculated. The calculations are carried out for industrial CW CO2 laser.
讨论了利用腔内柔性镜形成给定的低损耗、大束宽环形稳定谐振器基模的问题。该镜是一种具有一个圆形和两个环形控制电极的双压电晶片镜。采用反向传播方法来确定受控镜的合适形状。通过组合镜样品实验测量响应函数的权重，镜以最小均方根误差再现该形状。计算了施加到每个镜电极上的电压。计算是针对工业连续波二氧化碳激光器进行的。
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