论文标题
爱因斯坦望远镜的干涉仪臂中伸展望远镜的可行性研究
Feasibility study of beam-expanding telescopes in the interferometer arms for the Einstein Telescope
论文作者
论文摘要
爱因斯坦望远镜（ET）的光学设计基于双手臂上的Fabry-Perrot腔，基于双重恢复的Michelson干涉仪。 ET将在新的基础架构中构建，使我们可以考虑当前设施的限制之外的不同技术实施。在本文中，我们研究了在干涉仪臂中使用横梁伸缩望远镜的可行性。我们提供了一个示例实现，该实现与ET Design Update 2020中列出的光学布局相匹配。我们进一步表明，可以调整梁型望远镜，以补偿手臂腔和其余干涉仪之间的模式错配。
The optical design of the Einstein Telescope (ET) is based on a dual-recycled Michelson interferometer with Fabry-Perot cavities in the arms. ET will be constructed in a new infrastructure, allowing us to consider different technical implementations beyond the constraints of the current facilities. In this paper we investigate the feasibility of using beam-expander telescopes in the interferometer arms. We provide an example implementation that matches the optical layout as presented in the ET design update 2020. We further show that the beam-expander telescopes can be tuned to compensate for mode mismatches between the arm cavities and the rest of the interferometer.
