高温光纤光栅的研究进展

Research Development of High-Temperature Resistant Fiber Gratings

为了满足航空航天、导弹制导、冶炼等一些高温领域的传感测量需求,国内外学者对高温光纤光栅进行了大量的研究工作。对已报道的主要的高温光纤光栅进行了综述,按照光栅结构、特点和所用光纤的不同,将其分为Ⅱ型光纤光栅、ⅡA型光纤光栅、化学组分光纤光栅、掺杂特殊离子的光纤光栅、结构变化型长周期光纤光栅等,逐类进行了说明并对它们的制作方法、高温特性、优缺点等进行了介绍和简评,并对其发展前景和应用进行了展望。

High-temperature resistant fiber gratings have attracted lots of research interest in recent years due to their potential applications in several industrial and military areas such as aerospace, missile and smelting. Their research development is introduced by classifying them into five types, including type-Ⅱ gratings, type-Ⅱ A gratings, chemical composition gratings （CCGs）, special ion-doped fiber gratings and structural modification-induced long period fiber gratings. The fabrication methods, high temperature performances, and merits and drawbacks are reviewed. Their future developments and applications are discussed.