Xu Mengyue, Cai Xinlun
Opt Express. 2022 Feb 28;30(5):7253-7274. doi: 10.1364/OE.449022.
Increasing data traffic and bandwidth-hungry applications require electro-optic modulators with ultra-wide modulation bandwidth for cost-efficient optical networks. Thus far, integrated solutions have emerged to provide high bandwidth and low energy consumption in compact sizes. Here, we review the design guidelines and delicate structures for higher bandwidth, applying them to lumped-element and traveling-wave electrodes. Additionally, we focus on candidate material platforms with the potential for ultra-wideband optical systems. By comparing the superiority and mechanism limitations of different integrated modulators, we design a future roadmap based on the recent advances.
不断增长的数据流量和对带宽要求极高的应用需要具备超宽调制带宽的电光调制器，以实现具有成本效益的光网络。到目前为止，已经出现了集成解决方案，能够在紧凑尺寸下提供高带宽和低能耗。在此，我们回顾了用于实现更高带宽的设计准则和精细结构，并将其应用于集总元件和行波电极。此外，我们重点关注具有超宽带光学系统潜力的候选材料平台。通过比较不同集成调制器的优势和机制局限性，我们根据最新进展制定了未来路线图。
