中国物理B ›› 2019, Vol. 28 ›› Issue (7): 74210-074210.doi: 10.1088/1674-1056/28/7/074210

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Hollow and filled fiber bragg gratings in nano-bore optical fibers

Yong-Xin Zhang(张永欣), Sheng Liang(梁生), Qian-Qing Yu(余倩卿), Zheng-Gang Lian(廉正刚), Zi-Nian Dong(董梓年), Xuan Wang(王旋), Yu-Qin Lin(林裕勤), Yu-Qi Zou(邹郁祁), Kun Xing(邢坤), Liu-Yan Liang(梁柳雁), Xiao-Ting Zhao(赵小艇), Li-Jing Tu(涂立静)   

  1. 1 Key Laboratory of Education Ministry on Luminescence and Optical Information Technology, National Physical Experiment Teaching Demonstration Center, Department of Physics, School of Science, Beijing Jiaotong University, Beijing 100044, China;
    2 Yangtze Optical Electronic Company Ltd., Wuhan 430205, China;
    3 Wuhan University of Technology, Wuhan 430070, China;
    4 Anhui Agricultural University, Hefei 230036, China
  • 收稿日期:2019-04-22 修回日期:2019-05-21 出版日期:2019-07-05 发布日期:2019-07-05
  • 通讯作者: Sheng Liang E-mail:shliang@bjtu.edu.cn
  • 基金资助:

    Project supported by the Beijing Natural Science Foundation, China (Grant No. 4192047), the Fundamental Research Funds for the Central Universities, China (Grant Nos. 2018JBM070 and 2018JBM065), and the National Natural Science Foundation of China (Grant No. 61675019).

Hollow and filled fiber bragg gratings in nano-bore optical fibers

Yong-Xin Zhang(张永欣)1, Sheng Liang(梁生)1, Qian-Qing Yu(余倩卿)2,3, Zheng-Gang Lian(廉正刚)2, Zi-Nian Dong(董梓年)1, Xuan Wang(王旋)1, Yu-Qin Lin(林裕勤)1, Yu-Qi Zou(邹郁祁)1, Kun Xing(邢坤)1, Liu-Yan Liang(梁柳雁)1, Xiao-Ting Zhao(赵小艇)4, Li-Jing Tu(涂立静)4   

  1. 1 Key Laboratory of Education Ministry on Luminescence and Optical Information Technology, National Physical Experiment Teaching Demonstration Center, Department of Physics, School of Science, Beijing Jiaotong University, Beijing 100044, China;
    2 Yangtze Optical Electronic Company Ltd., Wuhan 430205, China;
    3 Wuhan University of Technology, Wuhan 430070, China;
    4 Anhui Agricultural University, Hefei 230036, China
  • Received:2019-04-22 Revised:2019-05-21 Online:2019-07-05 Published:2019-07-05
  • Contact: Sheng Liang E-mail:shliang@bjtu.edu.cn
  • Supported by:

    Project supported by the Beijing Natural Science Foundation, China (Grant No. 4192047), the Fundamental Research Funds for the Central Universities, China (Grant Nos. 2018JBM070 and 2018JBM065), and the National Natural Science Foundation of China (Grant No. 61675019).

摘要:

To combine the technical functions and advantages of solid-core fiber Bragg gratings (FBGs) and hollow-core optical fibers (HCFs), the hollow and filled FBGs in nano-bore optical fibers (NBFs) with nano-bore in the GeO2-doped core are proposed. The fundamental mode field, effective mode index, and confinement loss of NBF with 50 nm-7 μ-diameter hollow and filled nano-bore are numerically investigated by the finite element method. The reflected spectra of FBGs in NBFs are obtained by the transmission matrix method. The hollow FBGs in NBFs can be acheived with~5% power fraction in the bore and the~0.9 reflectivity when bore diameter is less than 3 μ. The filled FBGs can be realized with~1% power fraction and 0.98 reflectivity with different fillings including o-xylene, trichloroethylene, and chloroform for 800-nm bore diameter. The feasibility of the index sensing by our proposed NBF FBG is also analyzed and discussed. The experimental fabrication of hollow and filled FBGs are discussed and can be achieved by current techniques. The aim of this work is to establish a principle prototype for investigating the HCFs and solid-core FBGs-based fiber-optic platforms, which are useful for applications such as the simultaneous chemical and physical sensing at the same position.

关键词: nano-bore optical fiber, fiber Bragg grating (FBG), hollow-core optical fiber (HCF), fiber optics

Abstract:

To combine the technical functions and advantages of solid-core fiber Bragg gratings (FBGs) and hollow-core optical fibers (HCFs), the hollow and filled FBGs in nano-bore optical fibers (NBFs) with nano-bore in the GeO2-doped core are proposed. The fundamental mode field, effective mode index, and confinement loss of NBF with 50 nm-7 μ-diameter hollow and filled nano-bore are numerically investigated by the finite element method. The reflected spectra of FBGs in NBFs are obtained by the transmission matrix method. The hollow FBGs in NBFs can be acheived with~5% power fraction in the bore and the~0.9 reflectivity when bore diameter is less than 3 μ. The filled FBGs can be realized with~1% power fraction and 0.98 reflectivity with different fillings including o-xylene, trichloroethylene, and chloroform for 800-nm bore diameter. The feasibility of the index sensing by our proposed NBF FBG is also analyzed and discussed. The experimental fabrication of hollow and filled FBGs are discussed and can be achieved by current techniques. The aim of this work is to establish a principle prototype for investigating the HCFs and solid-core FBGs-based fiber-optic platforms, which are useful for applications such as the simultaneous chemical and physical sensing at the same position.

Key words: nano-bore optical fiber, fiber Bragg grating (FBG), hollow-core optical fiber (HCF), fiber optics

中图分类号:  (Fiber optics)

  • 42.81.-i
42.81.Wg (Other fiber-optical devices) 42.81.Dp (Propagation, scattering, and losses; solitons)