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飞秒激光刻写的超短光纤布拉格光栅及其传感特性

敬世美 张轩宇 梁居发 陈超 郑钟铭 于永森

敬世美, 张轩宇, 梁居发, 陈超, 郑钟铭, 于永森. 飞秒激光刻写的超短光纤布拉格光栅及其传感特性[J]. 中国光学(中英文), 2017, 10(4): 449-454. doi: 10.3788/CO.20171004.0449
引用本文: 敬世美, 张轩宇, 梁居发, 陈超, 郑钟铭, 于永森. 飞秒激光刻写的超短光纤布拉格光栅及其传感特性[J]. 中国光学(中英文), 2017, 10(4): 449-454. doi: 10.3788/CO.20171004.0449
JING Shi-mei, ZHANG Xuan-yu, LIANG Ju-fa, CHEN Chao, ZHENG Zhong-ming, YU Yong-sen. Ultrashort fiber Bragg grating written by femtosecond laser and its sensing characteristics[J]. Chinese Optics, 2017, 10(4): 449-454. doi: 10.3788/CO.20171004.0449
Citation: JING Shi-mei, ZHANG Xuan-yu, LIANG Ju-fa, CHEN Chao, ZHENG Zhong-ming, YU Yong-sen. Ultrashort fiber Bragg grating written by femtosecond laser and its sensing characteristics[J]. Chinese Optics, 2017, 10(4): 449-454. doi: 10.3788/CO.20171004.0449

飞秒激光刻写的超短光纤布拉格光栅及其传感特性

doi: 10.3788/CO.20171004.0449
基金项目: 

国家自然科学基金资助项目 61505206

吉林省科技发展计划资助项目 20150520089JH

详细信息
    作者简介:

    敬世美(1991-), 女, 四川遂宁人, 硕士研究生, 2014年于河北农业大学获得学士学位, 主要从事光纤传感器方面的研究。E-mail:785625159@qq.com

    于永森(1974-), 男, 吉林长春人, 博士, 副教授, 2005年于吉林大学获得博士学位, 主要从事光纤高温传感器方面的研究

    通讯作者:

    于永森, E-mail:yuys@jlu.edu.cn

  • 中图分类号: TN253

Ultrashort fiber Bragg grating written by femtosecond laser and its sensing characteristics

Funds: 

the National Natural Science Foundation of China 61505206

Jilin Provincial S & T Development Program Project 20150520089JH

More Information
  • 摘要: 为了提高光纤光栅传感器的测量精度及可靠性,实现点式测量,拓宽光纤布拉格光栅(FBG)的应用,本文提出了基于飞秒激光直写扫线技术制备超短FBG。首先,在单模光纤上制备了周期为5.35 μm、长度为53.5 μm的超短FBG,其温度和应力的灵敏度分别为0.011 nm/℃和1.509 nm/N;然后,用体积分数为4%的氢氟酸对制备超短FBG进行选择性腐蚀,制备出了微通道超短FBG,并研究了它对NaCl溶液的传感特性,其折射率灵敏度为69.11 nm/RIU。结果表明,这种微通道超短FBG具有高重复性、高可靠性、可多参数测量等优点。

     

  • 图 1  (a)飞秒激光刻写示意图;(b)基于微通道的光纤超短FBG结构示意图

    Figure 1.  (a) Schematic diagram of femtosecond laser writting; (b) Schematic diagram of microchannel ultrashort FBG structure

    图 2  基于微通道的超短FBG的显微照片。(a)侧视图;(b)俯视图

    Figure 2.  Micrographs of microchannel ultrashort FBG. (a) Side view; (b) Top view

    图 3  超短FBG反射光谱

    Figure 3.  Reflectance spectrum of ultrashort FBG

    图 4  未腐蚀超短FBG温度特性。(a)衍射峰波长随外界温度变化的漂移; (b)衍射峰波长和温度的线性关系

    Figure 4.  Temperature characteristics of uncorroded ultrashort FBG. (a) Wavelength shifts of diffraction peak with the change of surrounding temperature; (b) Linear relationship between the wavelength of diffraction peak and temperature

    图 5  未腐蚀超短FBG的应力特性。(a)衍射峰波长随外界应力变化的漂移; (b)衍射峰波长与外界应力的线性关系

    Figure 5.  `Stress characteristics of uncorroded ultrashort FBG. (a) Wavelength shifts of diffraction peak with the change of surrounding stress; (b) Linear relationship between the wavelength of diffraction peak and stress

    图 6  基于微通道的超短FBG反射光谱随外界折射率的漂移

    Figure 6.  Shift of reflection spectra of microchannel ultrashort FBG with surrounding refractive index

    图 7  基于微通道的超短FBG的折射率响应特性。(a)衍射峰波长随外界折射率变化的漂移; (b)衍射峰的波长漂移和外界折射率的线性关系

    Figure 7.  Refractive index response characteristics of microchannel ultrashort FBG. (a) Wavelength shifts of diffraction peak with the change of surrounding refractive index; (b) Linear relationship between wavelength shifts of diffraction peak and surrounding refractive index

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出版历程
  • 收稿日期:  2017-02-28
  • 修回日期:  2017-04-03
  • 刊出日期:  2017-08-01

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