High-powEr phosphorous-based DFB Lasers for Cold ATom Systems*(HELCATS)

每一种电子产品都需要一个时钟来保持它在系统内和当今世界范围内的工作和同步。原子钟可以尽可能精确地定义时间，这对于确定导航和防御系统的位置至关重要，在推动互联网时代的下一代电信系统中也是如此。原子钟目前体积庞大，价格昂贵，而世界对计时精度的要求也越来越高。一个主要的成本和尺寸因素来自于这些基于锶原子晶格的下一代时钟内部使用的激光和光学系统。现在需要将这些系统小型化并降低其成本，以便能够进入更广泛的商业市场。该项目开发了特殊的半导体激光光源，旨在实现这种小型化和降低成本。CST Global的最先进材料增长和格拉斯哥大学的芯片制造与英国国家测量研究所NPL一起解决了这些挑战。“

"Every electronic product needs a clock to keep it working and synchronised within the system and nowadays, across the world.Atomic clocks allow the highest possible precision in defining time, which is critical in determining position in navigation and defence systems, and in next generationtelecommunications systems that power the internet age. Atomic clocks are presently bulky and expensive, and the world is demanding ever more timing accuracy. A main cost and size factor comes from the laser and optical systems used inside these next generation of clocks based on a lattice of strontium atoms. The miniaturisation of these systems and their cost reduction is nowrequired to enable entry to a wider commercial market. This project develops special semiconductor laser light sources optimised to enable this miniaturisation and cost reduction. State of the art materials growth at CST Global and chip fabrication at the University of Glasgow is brought together alongside the UKs national measurement institute, NPL to solve these challenges."