Novel architecture and fabrication processes for single epitaxial growth distributed-feedback lasers for sensing and communication.

用于传感和通信的单外延生长分布式反馈激光器的新颖架构和制造工艺。

• 批准号: 2433350
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2433350
• 关键词: Novel; architecture; fabrication; processes; single

Specialised Compound semiconductor (CS) lasers with Distributed Feedback (DFB) are used for high-speed datacom networks and in LiDAR (Light Detection And Ranging) for navigation and obstacle avoidance by autonomous vehicles and robots. Applications require DFB lasers which feature high optical powers and narrow linewidths, that operate in a range of environments.Current DFB lasers are manufactured in multiple steps by specialised suppliers at different sites: CS base layer is grown onto wafer-scale substrates, then sent to another supplier for a custom grating pattern to be defined using electron beam lithography, before being sent back to the CS material supplier to complete the structure. This extended supply chain increases manufacturing lead-times from weeks to months, and additional material handling increases chip-scale defects, lowering yield and increasing costs.For the market to accommodate the number of devices required, the technology needs to be commoditised to drive a cost reduction of ~10x. Innovation is needed to replace the current multi-step approach. This project will focus on developing novel device architectures, associated material-scale product which will increase yield, lower production lead-times and costs of manufacture. The methods used will be verified by testing laser performance and reliability.

具有分布式反馈（DFB）的专用化合物半导体（CS）激光器用于高速通信网络和LiDAR（光探测和测距），用于自动驾驶车辆和机器人的导航和避障。应用要求DFB激光器具有高光功率和窄线宽，可在各种环境中工作。目前的DFB激光器由专业供应商在不同地点分多个步骤制造：CS基层生长在晶圆级衬底上，然后发送到另一个供应商，以使用电子束光刻来定义定制的光栅图案，然后送回CS材料供应商完成结构。这种延长的供应链将制造交付周期从数周增加到数月，额外的材料处理增加了芯片级缺陷，降低了产量并增加了成本。为了让市场适应所需的设备数量，需要将该技术商品化，以将成本降低约10倍。需要创新来取代目前的多步骤方法。该项目将专注于开发新的器件架构，相关的材料规模产品，这将提高产量，降低生产周期和制造成本。将通过测试激光器性能和可靠性来验证所使用的方法。