蓝宝石光纤高温光学特性研究  

Study on Optical Properties of Sapphire Fiber under High Temperature

作　　者：张月芳[1] 叶林华[2] 裘燕青[2] 

机构地区：[1]海南大学材料与化工学院,海口570228 [2]浙江大学物理系,杭州310027

出　　处：《半导体光电》2009年第5期724-727,769,共5页Semiconductor Optoelectronics

基　　金：海南省教育厅高校科研项目(Hj2008-10);海南省自然科学基金项目(807012);海南大学科研基金项目(kyjj0607)

摘　　要：实验研究了蓝宝石光纤在高温环境下(大于1000℃)的光学稳定性,以及光纤的自辐射、塑性弯曲对出射光信号的影响,结果表明蓝宝石光纤在高温下的光学传输损耗随时间增加,温度测量精度由信号的稳定性和光纤自辐射决定,而蓝宝石光纤的塑性弯曲引起的信号额外损耗比较小,在900nm处小于0.1dB。光纤表面在高温下的永久损伤是产生这些性能劣变的主要原因,损伤的主要机制为外部杂质在高温下与光纤表面的相互作用。The performance stability, self-radiation and plastically bend of sapphire fiber under high temperature are studied. Experimental results show the optical transmitter loss increases with time when sapphire fiber under high temperature environment. Temperature measurement precision depends on the stability of signal and the self-radiation of fiber. The additional loss caused by a single plastically bend is less than 0.1 dB at 900 nm, less than the loss before bend. The permanent injury of the sapphire fiber surface is the main reason for deterioration. It is found that the surface injury is mainly attributed to the pollution of the fiber surface and the mutual reaction between the sapphire fiber and the polluted substance in the ambient environment.

关 键 词：蓝宝石光纤 高温稳定性 自辐射 塑性弯曲 

分 类 号：TP212.11[自动化与计算机技术—检测技术与自动化装置]