Semiconductor Quantum Photonics

集成光子学利用集成电子学的优点，如大批量制造、可重复性、稳定性和紧凑的尺寸，并将其应用于在半导体晶圆上制造的光学电路。这是一个快速增长的商业利益领域（预计到2022年，市场规模将达到18亿美元），由华为、思科和英特尔等大型电信和数据通信公司领导，这些公司已经零售了用于数据中心和5G应用的硅光子收发器。这些优势可以转移到处理非经典和纠缠光的量子光子集成电路（PICs）中，以创建实用的量子通信，计算和成像设备。该项目是对我们最近授予的Innovate UK项目的补充，该项目将展示计算设计的光子元件的可制造性，以实现更高的性能，改进的容错性和新功能。设备将通过CORNERSTONE工厂制造。我们将使用定制的测试平台和电子显微镜来评估设备，以在Lumerical中构建该设备的现实模型。在此过程中，我们将为英国量子技术的PICs商业化能力做出贡献。卡迪夫的一项研究是将PICs与化合物半导体功能化，从而在芯片上实现高效的光产生、检测和操作。

Integrated photonics takes the advantages of integrated electronics, such as mass manufacture, reproducibility, stability, and compact sizing, and applies it to optical circuits fabricated on semiconductor wafers. It is an area of rapidly growing commercial interest (estimated market of $1.8 billion by 2022 [1]) led by large telecoms and datacomms companies such as Huawei, Cisco and Intel who already retail silicon photonics transceivers for data-centre and 5G applications. These advantages can be transferred to quantum photonic integrated circuits (PICs) which handle non-classical and entangled light to create practical quantum communications, computing and imaging devices. This project is complementary to our recently awarded Innovate UK project which will demonstrate the manufacturability of computationally designed photonic components to achieve higher performance, improved error tolerance and new functionalities. Devices will be fabricated via the CORNERSTONE facility. We will assess the devices with a custom-built test rig and an electron microscope to build a realistic model of the device in Lumerical. In the process we shall contribute to a UK capability for the commercialisation of PICs for quantum technologies. An avenue of research in Cardiff is for PICs to be functionalised with compound semiconductors, enabling efficient light generation, detection and manipulation on chip.