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| S+C+L波段色散斜率补偿光子准晶体光纤 | |
| 引用本文： | 袁子琳,龚元,马耀远,杜磊,吴宇,饶云江,吴慧娟,王浚璞,万夫. S+C+L波段色散斜率补偿光子准晶体光纤[J]. 光子学报, 2014, 0(11): 1261-1266. DOI: 10.3788/gzxb20124111.1261 |
| 作者姓名： | 袁子琳 龚元 马耀远 杜磊 吴宇 饶云江 吴慧娟 王浚璞 万夫 |
| 作者单位： | 南开大学 物理学院, 天津 300071 |
| 基金项目： | 国家自然科学基金(No. 61107073, No. 61107072, No. 61106045);中央高校基本科研业务费专项资金(No. ZYGX2011J002);高等学校博士学科点专项科研基金(No. 20110185120020)和瞬态光学与光子技术国家重点实验室开放基金(No. SKLST201005)资助 |
| 摘 要： | 提出了一种改进的光纤光栅应变传感器结构,用有限元分析软件对其进行建模和静力仿真,得到其应力分布和光栅区域的应变情况.在整体宽度与厚度相等的情况下,此结构的灵敏度约为传统"工"字型结构的600倍.进一步分析了其关键区域的6个结构参量对应变灵敏度及量程的影响.筛选、设计并加工出不同尺寸的两种应变片,分别用UV胶与玻璃焊料对光栅进行封装,得到灵敏度分别为:249 pm/N、330 pm/N和1.1 pm/N.比较分析表明,本文提供的分析方法与数据,可为不同工程应用场合的最优结构设计提供依据. |
| 关 键 词： | 光子准晶体光纤 色散斜率 补偿 相对色散斜率 |
| 收稿时间： | 2012-05-24 |
Structure Optimization of Fiber Bragg Grating Strain Sensors |
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| YUAN Zi-lin,GONG Yuan,MA Yao-yuan,DU Lei,WU Yu,RAO Yun-jiang,WU Hui-juan,WANG Jun-pu,WAN Fu. Structure Optimization of Fiber Bragg Grating Strain Sensors[J]. Acta Photonica Sinica, 2014, 0(11): 1261-1266. DOI: 10.3788/gzxb20124111.1261 | |
| Authors: | YUAN Zi-lin GONG Yuan MA Yao-yuan DU Lei WU Yu RAO Yun-jiang WU Hui-juan WANG Jun-pu WAN Fu |
| Affiliation: | School of Physics, Nankai University, Tianjin 300071, China |
| Abstract: | The dependence of a fiber Bragg grating strain sensor on the improved structure parameters was investigated both numerically and experimentally. The stress distribution and the strain of the grating region was obtained. In the case of the overall width and thickness are equal, the sensitivity of this structure is about 600 times higher than the traditional I-shaped structure. The influence of the 6 key structure parameters on the strain sensitivity and the measurement range was analyzed in detail. Experimental results were also given compared with the numerical simulated results. The gratings were packaged respectively with UV glue and glass solder to get the sensitivities were: 249 pm/N, 330 pm/N and 1.1 pm/N. The analysis method and data provided a basis for structural optimum design of fiber Bragg grating strain sensors in different applications. |
| Keywords: | Fiber Bragg grating Optical fiber strain sensor Sensitivity Structural optimization |
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