ADRENALIN (lAser Diodes in the veRy nEar iNfrared for quantum AppLIcatioNs )

肾上腺素（用于量子应用的极近红外激光二极管）

• 批准号: 10032658
• 金额: $ 52.15万
• 依托单位: VECTOR PHOTONICS LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=10032658
• 关键词: ADRENALIN; lAser; Diodes; veRy; nEar

Quantum computing is a rapidly emerging technology offering transformative changes to society as a whole by providing vast improvements in computational capability that will solve complex many-body problems that are currently intractable. It will potentially deliver advancements in diverse fields such as finance, climate change, infrastructure planning, drug discovery, secure communications and material science.Trapped-ion Quantum Computing (TIQC) systems are one of the most advanced and promising quantum computing platforms in which an oscillating electric field is used to confine ions which serve as the qubits used to encode quantum information. This approach offers a route towards scaling up the number of qubits and thereby delivering the increase in computing power that is ultimately desired, allowing the technology to emerge from small scale lab-based experimental environments to integrated user-friendly systems for everyday use. Laser sources are a key requirement in TIQC, performing essential system functions including ionisation, cooling, repumping and spectroscopy. Typically these different requirements are served by a wide range of laser sources, each with different wavelengths and performance requirements.The ADRENALIN project will develop a novel type of laser, a Photonic Crystal Surface Emitting Lasers (PCSEL) for use in QT applications. PCSELs employ photonic crystals to produce 2nd order out-of-plane diffraction and enable vertical, single-frequency emission. This novel device architecture provides excellent beam quality compared to other laser diodes and significantly reduces manufacturing costs. PCSELs can also be configured in 2D arrays with steerable individually addressable output, enabling different lattice sites to be addressed simultaneously. In addition these devices can be manufactured in most III-V semiconductors, allowing most of the wavelength range used in QT applications to be addressed.The many advantages of the PCSEL device will help facilitate scaling in next generation TIQC systems to accommodate larger numbers of qubits thereby enabling exponential increases in computational power and more widespread utilisation of the technology. The PCSEL will also help drive miniaturisation in QT applications -- this is important in TIQC but is also a key driver in the development of miniature atomic clocks for portable high-precision time-keeping, enabling a more widespread adoption of the technology and providing the potential to significantly advance improvements in transportation, defence and communication sectors. In both applications, PCSELs will ultimately displace incumbent light sources which typically rely on relatively bulky, expensive and complicated external cavity lasers and will become essential components in future QT systems.

量子计算是一项快速新兴的技术，通过计算能力的巨大改进，解决目前棘手的复杂多体问题，为整个社会带来变革。它将有可能在金融、气候变化、基础设施规划、药物发现、安全通信和材料科学等不同领域带来进步。俘获离子量子计算（TIQC）系统是最先进和最有前途的量子计算平台之一，其中振荡电场用于限制用作编码量子信息的量子位的离子。这种方法提供了一条扩大量子位数量的途径，从而提高最终所需的计算能力，使该技术能够从小规模的实验室实验环境发展为日常使用的集成用户友好系统。激光源是 TIQC 的关键要求，执行基本的系统功能，包括电离、冷却、再泵浦和光谱。通常，这些不同的要求由各种激光源满足，每种激光源都有不同的波长和性能要求。ADRENALIN 项目将开发一种新型激光器，即用于 QT 应用的光子晶体表面发射激光器 (PCSEL)。 PCSEL 采用光子晶体产生二阶面外衍射并实现垂直单频发射。与其他激光二极管相比，这种新颖的器件架构可提供出色的光束质量，并显着降低制造成本。 PCSEL 还可以配置为具有可操纵的单独可寻址输出的 2D 阵列，从而能够同时寻址不同的晶格位置。此外，这些器件可以用大多数 III-V 族半导体制造，从而可以满足 QT 应用中使用的大部分波长范围。PCSEL 器件的许多优点将有助于促进下一代 TIQC 系统的扩展，以容纳更多数量的量子位从而使计算能力呈指数级增长，并使该技术得到更广泛的利用。 PCSEL 还将帮助推动 QT 应用的小型化——这在 TIQC 中很重要，但也是开发用于便携式高精度计时的微型原子钟的关键驱动力，从而使该技术得到更广泛的采用，并提供具有显着促进交通、国防和通信部门改善的潜力。在这两种应用中，PCSEL 最终将取代通常依赖于相对笨重、昂贵且复杂的外腔激光器的现有光源，并将成为未来 QT 系统的重要组件。