Development of a process for high-throughput fabrication of high-quality Fibre Bragg Grating cavities

这项合作研究的目标是对用于直接测量高压发电机内部应变和温度**的所谓**双腔光纤布拉格光栅(2C FBG)传感器的制造工艺提出新的见解。此类安装的异常振动和温度升高**是一个问题的迹象，如果不立即解决，可能会导致重大停机和/或**更换费用。今天，FBG仍然是传感器必须在这样**高电压和强电磁场的恶劣环境中工作的唯一解决方案。为了解决与使用氢化光纤制造2D FBG相关的制造缺陷，我们建议研究**光敏光纤。感光纤维更好的稳定性和潜在更快的腔体写入时间**有可能产生质量更好的产品，在同一批次内以及**在批次之间的变化更紧密。

The goal of this collaborative research is to develop a new insight into the fabrication process of so-called**two-cavity Fibre Bragg Grating (2C FBG) sensors employed for direct measurements of strain and temperature**inside high-voltage power generators. The abnormal vibrations and elevated temperatures of such installations**are an indication of a problem that, if not addressed immediately, could lead to significant outage and/or**replacement expenses. Today, FBGs remain the exclusive solution for sensors having to work inside such a**hostile environment of high voltages and strong electromagnetic fields. To address the manufacturing**deficiencies related to the use of hydrogenated fibres for fabrication of 2D FBG, we propose to investigate**photosensitive fibres. A better stability of the photosensitive fibre and the potentially faster cavity writing time**have the potential to yield a better-quality product with tightened variation within the same batch as well as**from batch to batch.