| 摘要 |
<p>The optical resonator has several mirrors (M1-M6) that are arranged to form a ring structure. The two successive mirrors are connected to each other by the respective laser beam paths. The mirrors are arranged in two different planes to produce the image rotation which is a rotation of the cross-sectional pattern of laser beam. The mirrors are spatially arranged such that the image rotation is performed until the original beam image orientation is restored.</p> |
