探讨这种发散纤维透镜用作激光束变换元件的设计原理以及在望远镜式扩束型光学耦合系统中的应用。
The design principle of this defocusing fiber lens used as laser beam transforming device and application in an expanded beam coupling system are discussed.
实验结果表明对于高增益的准分子激光，采用部份透射镜作耦合输出的混合型非稳腔可以使准分子激光的发散角减小到毫弧度量级。
The experimental results showed that good beam quality was obtained with a hybrid unstable resonator in which useful output energy was obtained by transmission through a partially transparent mirror.
扩束镜是一种由两个或多个元件组成的光学系统，它能改变光束的大小和发散特性。
The beam expander is an optical system composed by two or more components. It can change the size and divergence characteristics of the beams.
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