Opt Express. 2023 Feb 13;31(4):6342-6355. doi: 10.1364/OE.475921.
We report the realisation of a high-finesse open-access cavity array, tailored towards the creation of multiple coherent light-matter interfaces within a compact environment. We describe the key technical developments put in place to fabricate such a system, comprising the creation of tapered pyramidal substrates and an in-house laser machining setup. Cavities made from these mirrors are characterised, by laser spectroscopy, to possess similar optical properties to state-of-the-art fibre-tip cavities, but offer a compelling route towards improved performance, even when used to support only a single mode. The implementation of a 2×2 cavity array and the independent frequency tuning between three neighbouring sites are demonstrated.
我们报告了一种高精细度开放式腔阵列的实现，该阵列旨在在紧凑的环境中创建多个相干光物质界面。我们描述了为制造这种系统而采用的关键技术发展，包括锥形金字塔基底的创建和内部激光加工设置。通过激光光谱学对这些反射镜制成的腔进行了表征，它们具有与最先进的光纤尖端腔类似的光学性能，但即使仅支持单个模式，也提供了改善性能的诱人途径。我们还展示了一个 2×2 腔阵列的实现，以及三个相邻站点之间的独立频率调谐。
