Femtosecond frequency combs for precision distance metrology

这是一个物理学博士研究项目。最精确的激光频率梳是那些基于固态增益晶体Ti：蓝宝石，这通常需要一个昂贵的，水冷绿色激光泵源。在赫瑞瓦特大学，我们已经使用绿色激光二极管获得了直接泵浦，这是一项潜在的改变游戏规则的技术。该项目将开发激光二极管泵浦Ti：蓝宝石频率梳，利用其尺寸和调制带宽开发多功能和经济高效的梳，可以复用，以实现超高精度的距离计量使用合作目标，如后向反射器。从开发新型钛：蓝宝石双梳系统开始，该项目将与我们的工业合作伙伴雷尼绍合作，将这些系统应用于机床误差量化。该学生将在赫瑞瓦特大学注册，并在那里度过大部分时间。雷尼绍PLC与赫瑞瓦特大学位于同一校园。

This is a PhD research project in Physics. The most accurate laser frequency combs are those based on the solid-state gain crystal Ti:sapphire, which normally requires an expensive, water cooled green laser pump source. At Heriot-Watt we have obtained direct pumping using green laser diodes, a potentially game-changing technology. This project will develop laser-diode pumped Ti:sapphire frequency combs, leveraging their size and modulation bandwidth to develop versatile and cost-effective combs that can be multiplexed to achieve ultra-high-precision distance metrology using cooperative targets such as retroreflectors. Beginning with the development of novel Ti:sapphire dual-comb systems, the project will move towards applying these in collaboration with our industrial partner Renishaw for applications in quantifying machine-tool errors. The student will be registered at Heriot-Watt University where they will spend the majority of their time. Renishaw PLC is based on the same campus as Heriot-Watt.