Flexible Electronic-Photonic Integrated Circuit Sensor Platform II [EPIC-Sense II]

该提案旨在探索毫米波范围内的可扩展的两级电子-光子MIMO雷达系统。在SPP 2111的第一阶段，已经解决了本振信号的相干光分布以及电子-光子FMCW雷达前端的宽带集成。SPP 2111第二阶段的愿景是通过新的频分复用方法扩展单片集成电子光子FMCW雷达系统，该方法通过传输高数据速率编码方案的新的附加光学数据总线来实现。在这种附加编码的帮助下，可以区分大量的相干2x2雷达模块，同时将计算密集型编码集中在中心节点中。特别是对于电光接口，为了满足具有挑战性的带宽需求，需要深入研究光调制方法和器件的新技术。EPIC-Sense II研究项目包括以下核心科学创新：1. D波段宽带两级FMCW MIMO传感器系统研究2.跨学科电子-光子系统概念的单片集成。利用附加高速光数据总线的两级频分复用方案的实施4.分布式、可扩展的电子-光子传感器节点的光网络互连和组装技术研究5。集成新颖的创新电路概念，显著扩展硅基马赫-曾德尔调制器目前有限的带宽6。锗基电吸收调制器的研究和推广，并集成到SG 25 H5-EPIC技术平台

This proposal aims to explore a scalable, two-stage electronic-photonic MIMO radar system in the millimeter-wave range. In phase I of SPP 2111, the coherent optical distribution of the local oscillator signal was already addressed as well as the broadband integration of an electronic-photonic FMCW radar front-end. The vision for Phase II of SPP 2111 is the extension of a monolithically integrated electronic-photonic FMCW radar system by a new frequency-division multiplexing approach, which is realized by a new additional optical data-bus transmitting a high data rate coding scheme. With the help of this additional coding, a large amount of coherent 2x2 radar modules can be differentiated, while concentrating the computationally intensive coding in a central node. Especially for the electro-optical interfaces, intensive research into new technologies of optical modulation methods and components is necessary in order to meet the challenging bandwidth requirements.The EPIC-Sense II research project includes the following core scientific innovations: 1. Research of a broadband, two-stage FMCW MIMO sensor system in the D-band2. Monolithic integration of the interdisciplinary electronic-photonic system concept3. implementation of a two-stage frequency-division multiplexing scheme exploiting an additional high-speed optical data bus4. Investigation of interconnect and assembly techniques for optical networking of distributed, scalable electronic-photonic sensor nodes5. Integration of novel innovative circuit concepts to significantly extend the currently limited bandwidth of Silicon-based Mach-Zehnder modulators6. Research and proliferation of germanium-based electro-absorption modulators and integration into the SG25H5-EPIC technology platform