Microcharacterisation of rare-earth-doped optical fibres

稀土掺杂光纤继续在光通信系统中发挥核心作用，并越来越多地被用作光纤传感装置和光纤激光器的元件。该项目的目的是应用新的高空间分辨率技术来确定这种纤维的物理特性。这些方法将使人们能够前所未有地了解稀土离子在光纤中的精确分布及其与光纤折射率分布的关系。这些信息对于理解稀土掺杂纤维在各种应用中的性能至关重要，这项工作的结果将为特定应用中优化使用的纤维的设计提供信息。

Rare-earth-doped optical fibres continue to play a central role in optical telecommunication systems and are increasingly being used as elements in optical fibre sensing devices and as fibre lasers. The aim of this project is the application of new high spatial resolution techniques for determining the physical properties of such fibres. These methods will permit unprecedented knowledge of the precise distribution of rare-earth ions in the fibre and its relationship with the fibre's refractive index profile. This information is critical to understanding the performance of rare-earth-doped fibres in a variety of applications and the outcomes of this work will inform the design of fibres optimised for use in specific applications.