This paper explores a new paradigm of optical integrated sensing and communication (O-ISAC). Our investigation reveals that optical communication and optical sensing are two inherently complementary technologies. On the one hand, optical communication provides the necessary illumination for optical sensing. On the other hand, optical sensing provides environmental information for optical communication. These insights form the foundation of a directionless integrated system, which constitutes the first phase of O-ISAC. We further put forth the concept of optical beamforming using the collimating lens, whereby the light emitted by optical sources is concentrated onto the target device. This greatly improves communication rate and sensing accuracy, thanks to remarkably increased light intensity. Simulation results confirm the significant performance gains of our O-ISAC system over a separated sensing and communication system. With the collimating lens, the light intensity arrived at the target object is increased from 1.09% to 78.06%. The sensing accuracy and communication BER are improved by 62.06dB and 65.52dB, respectively.

翻译：本文探索了一种新型光学集成感知与通信（O-ISAC）范式。我们的研究表明，光通信与光感知是两种天然的互补技术：一方面，光通信为光感知提供必要的照明；另一方面，光感知为光通信提供环境信息。这些发现构成了无定向集成系统的基础，即O-ISAC的第一阶段。我们进一步提出了利用准直透镜实现光学波束成形的概念，将光源发出的光集中到目标设备上。由于光强显著提升，通信速率和感知精度均得到极大改善。仿真结果证实，与分离式感知与通信系统相比，本文提出的O-ISAC系统具有显著性能优势。采用准直透镜后，到达目标物体的光强从1.09%提升至78.06%，感知精度与通信误码率分别改善62.06dB和65.52dB。