The experimental realization of a Kerr frequency comb represented the convergence of research in materials, physics, and engineering, and this symbiotic relationship continues to underpin efforts in comb innovation today. While the initial focus developing cavity-based frequency combs relied on existing microresonator architectures and classic optical materials, in recent years, this trend has been disrupted. This paper reviews the latest achievements in frequency comb generation using resonant cavities, placing them within the broader historical context of the field. After presenting well-established material systems and device designs, the emerging materials and device architectures are examined. Specifically, the unconventional material systems as well as atypical device designs that have enabled tailored dispersion profiles and improved comb performance are compared to the current state of art. The remaining challenges and future outlook for the field of cavity-based frequency combs is evaluated.

中文翻译：

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用于集成光学克尔频率梳的新兴材料系统

克尔频率梳的实验实现代表了材料、物理和工程研究的融合，这种共生关系继续支撑着当今梳子创新的努力。虽然开发基于腔的频率梳的最初重点依赖于现有的微谐振器架构和经典光学材料，但近年来，这种趋势已被打破。本文回顾了使用谐振腔产生频率梳的最新成果，将它们置于该领域更广泛的历史背景中。在介绍了完善的材料系统和设备设计之后，检查了新兴的材料和设备架构。具体来说，非常规材料系统以及非典型设备设计能够实现定制的色散分布和改进的梳状性能，与当前的技术状态进行比较。评估了基于腔的频率梳领域的剩余挑战和未来前景。