论文部分内容阅读
擦除温度和再生温度相同时,在800~950℃温度区间内,光纤光栅的擦除时间和再生完成时间均随处理温度呈指数衰减。利用再生完成时间拟合函数,得到紫外载氢标准通信光纤光栅的再生阈值温度为805℃,并且当处理温度在855~905℃之间时,不同温度下制得的再生光纤光栅的反射率大小服从高斯分布,定量描述了光纤光栅再生的整个过程。提出了一种制作高反射率再生光纤光栅的方法,当擦除温度和再生温度不同时,该方法可将紫外载氢标准通信光纤上的再生光纤光栅的反射率从20%提高到43%。
When the erasing temperature and the regeneration temperature are the same, the erasing time and the regeneration completion time of the FBG decline exponentially with the processing temperature in the temperature range of 800-950 ° C. The regeneration threshold temperature of ultraviolet carrier hydrogen communication standard optical fiber gratings was obtained by using the fitting function of regeneration completion time, and the reflectivity of regenerated FBG prepared at different temperatures was obtained when the treatment temperature was between 855 ℃ and 905 ℃ Subject to Gaussian distribution, the quantitative description of the whole process of fiber grating regeneration. A method of fabricating a high-reflectivity regenerated fiber grating is proposed, which increases the reflectivity of a regenerated fiber grating on a UV-C standard communication fiber from 20% to 43% at different erasure temperatures and regeneration temperatures.