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

本提案旨在探索毫米波范围内可扩展的两级电子-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。spp2111第二阶段的愿景是通过一种新的频分复用方法扩展单片集成电子-光子FMCW雷达系统，该方法通过一个新的附加光数据总线传输高数据速率编码方案来实现。在这种额外编码的帮助下，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一个中心节点。特别是对于电光接口，为了满足具有挑战性的带宽要求，必须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：d波段宽带两级FMCW MIMO传感器系统的研究。跨学科电子-光子系统概念的单片集成。利用附加高速光学数据总线4的两级频分复用方案的实现。分布式、可扩展电子-光子传感器节点光网络互连与组装技术研究集成新颖的创新电路概念，显著扩展目前有限的硅基马赫-曾德尔调制器带宽6。基于锗的电吸收调制器的研究和推广，并集成到SG25H5-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