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Integrated optical sensor based on a FBG in parallel with a LPG

LIANG Ju-fa JING Shi-mei MENG Ai-hua CHEN Chao LIU Yun YU Yong-sen

梁居发, 敬世美, 孟爱华, 陈超, 刘云, 于永森. 基于光纤布拉格光栅与长周期光栅并联的集成光学传感器[J]. 中国光学(中英文), 2016, 9(3): 329-334. doi: 10.3788/CO.20160903.0329
引用本文: 梁居发, 敬世美, 孟爱华, 陈超, 刘云, 于永森. 基于光纤布拉格光栅与长周期光栅并联的集成光学传感器[J]. 中国光学(中英文), 2016, 9(3): 329-334. doi: 10.3788/CO.20160903.0329
LIANG Ju-fa, JING Shi-mei, MENG Ai-hua, CHEN Chao, LIU Yun, YU Yong-sen. Integrated optical sensor based on a FBG in parallel with a LPG[J]. Chinese Optics, 2016, 9(3): 329-334. doi: 10.3788/CO.20160903.0329
Citation: LIANG Ju-fa, JING Shi-mei, MENG Ai-hua, CHEN Chao, LIU Yun, YU Yong-sen. Integrated optical sensor based on a FBG in parallel with a LPG[J]. Chinese Optics, 2016, 9(3): 329-334. doi: 10.3788/CO.20160903.0329

基于光纤布拉格光栅与长周期光栅并联的集成光学传感器

基金项目: 

吉林省科技发展计划资助项目 No.20150520089JH

长春市科技局重大科技攻关专项资助项目 No.13KG22

详细信息
  • 中图分类号: TN253

Integrated optical sensor based on a FBG in parallel with a LPG

doi: 10.3788/CO.20160903.0329
Funds: 

Supported by Jilin Provincial Science and Technology Development Plan Project No.20150520089JH

Changchun City Science and Technology Bureau Major Scientific Research Project No.13KG22

More Information
    Author Bio:

    LIANG Ju-fa(1990-), male, born in Yunfu, Guangdong Province. He received his bachelor's degree in College of Electronic Science and Engineering, Jilin University in 2013. Now he is a master student in College of Electronic Science and Engineering, Jilin University. His research interest is optical fiber sensors. E-mail:souldean@163.com

    Corresponding author: YU Yong-sen(1974-), male, born in Changchun, Jilin Province. He received his doctor's degree in College of Electronic Science and Engineering, Jilin University in 2005. And now he is a professor in College of Electronic Science and Engineering, Jilin University. His research interest is optical fiber gratings and optical fiber sensors. E-mail:yuys@jlu.edu.cn
  • 摘要: 为了提高光纤传感器的性能和进一步缩小传感器的尺寸,通过实验制备出一种基于光纤布拉格光栅(FBG)与长周期光栅(LPG)并联的新型集成光学传感器。该传感器中的FBG和LPG是利用飞秒激光直写技术直接在普通单模光纤中刻写的。FBG和LPG是并联关系,因此很大程度地缩小了传感器的长度。外界的温度和折射率的变化会引起FBG和LPG的谐振峰波长位置发生变化,据此对该集成传感器进行温度和折射率测量。实验结果表明:FBG谐振峰对折射率和温度的灵敏度分别为0 nm/RIU和12.98 pm/℃,而LPG在1 555 nm附近谐振峰对折射率和温度的灵敏度为196.46 nm/RIU和10.93 pm/℃。因此,根据双参数传感矩阵,该传感器可以对温度和外界折射率进行同时传感。

     

  • Figure 1.  Schematic diagram of the integrated optical sensor

    Figure 2.  Side-view microscope image of RI modulation region of the FBG and the LPG in the fiber core(the inset is the enlarged view of the grating structure)

    Figure 3.  Transmission spectra of the FBG and the FBG in parallel with the LPG in the oil(the inset is the details of the Bragg resonant peak)

    Figure 4.  Transmission spectrum of the integrated optical sensor in the air and the high order cladding modes corresponding to the loss peaks of the LPG

    Figure 5.  Shifts of the loss peak wavelength of the sensor with different RI solutions

    Figure 6.  (a)Wavelengths of the Bragg resonant peak and the LPG loss peak change with the SRI,(b)wavelengths of the Bragg resonant peak and the LPG loss peak change with temperature

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出版历程
  • 收稿日期:  2016-03-03
  • 修回日期:  2016-03-23
  • 刊出日期:  2016-01-25

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