We present an axisymmetric-fold combination laser resonator. For a laser with the resonator, it can give a strong output, a good light beam, and a small device volume. The energy flux of the beam is high and the diameter is small in the near field; it diverges with a small angle, but transforming the beam from a divergent beam into a parallel or convergent beam is convenient. The resonator is suitable for various kinds of lasers.
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Yude Li (2005) studied this question.
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