长周期光纤光栅在光纤通信和光纤传感领域有着广泛的应用。目前制作长周期光纤光栅的方法存在着制作成本、光栅性能和制作过程复杂之间的矛盾。提出了一种新的长周期光纤光栅制作技术。以宽光谱紫外光源代替激光器来制作长周期光纤光栅。采用该项技术可以同时制作出多根具有良好光谱性能的长周期光纤光栅,使长周期光纤光栅的制作更加简单、经济、实用,特别适合于批量工业化生产。

Long period gratings (LPGs) will play an important role and be widely used in the fields of optical communication and optical fiber sensing. Many useful methods have been proposed to manufacture LPGs. However, there are some obvious disadvantages in these existing methods: high performance but high cost, or easy fabricating but low performance. To overcome these shortcomings, a novel technique is proposed for LPGs fabrication. In this method, a broad spectrum UV source is used instead of UV laser to write LPGs, and more than one LPG can be written simultaneously. As a result, it is easy to write LPGs with high performance, low cost and easy manufacturing. This technique can be used in industrial production of LPGs with very low cost.