An optical fiber magnetic field sensor based on fiber spherical structure interferometer coated by magnetic fluid

被引：2
作者：
Xu F.-T. [1 ]
Luan P.-P. [1 ]
Jia K.-S. [1 ]
Zhang A.-L. [1 ]
机构：
[1] College of Computer & Communication Engineering, Tianjin University of Technology, Tianjin
来源：
Optoelectronics Letters | 2015年 / 11卷 / 5期
关键词：
Magnetic Fluid; Transmission Loss; Effective Refractive Index; Spherical Structure; Core Mode;
D O I：
10.1007/s11801-015-5089-8
中图分类号：
学科分类号：
摘要：
A novel magnetic field sensor based on optical fiber Mach-Zehnder interferometer (MZI) coated by magnetic fluid (MF) is proposed. The MZI consists of two spherical structures formed on standard single mode fiber (SMF). The interference wavelength and the power of the sensing structure are sensitive to the external refractive index (RI). Since RI of the MF is sensitive to the magnetic field, the magnetic field measurement can be realized by detecting the variation of the interference spectrum. Experimental results show that the wavelength and the power of interference dip both increase with the increase of magnetic field intensity. © 2015, Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：379 / 381
页数：2
相关论文
共 12 条
  • [1] Yang Y., Kang C., Huang Z., Zhang X., Zhang Y., Wang D., Liu J., The Study of Optical Fiber Ring Interference Weak Magnetic Field Sensor, 10th Russian-Chinese Symposium on Laser Physics and Laser Technologies and Academic Symposium on Optoelectronics Technology, (2010)
  • [2] Ou Q., Zeng Q., Qing Z., Li C., Journal of Optoelectronics·Laser, 24, (2013)
  • [3] Shi J., Xiao S., Bi M., Yi L., Yang P., Applied Optics, 51, (2012)
  • [4] Sheng Z., Chen Y., Han Q., Journal of Optoelectronics·Laser, 25, (2014)
  • [5] Li T., Dai Y., Zhao Q., Journal of Optoelectronics·Laser, 25, (2014)
  • [6] Hong C., Yang S.Y., Hong H.E., Yang H.C., Journal of Applied Physics, 94, (2003)
  • [7] Dai J., Yang M., Li X., Liu H., Tong X., Optical Fiber Technology, 17, (2011)
  • [8] Liu T., Chen X., Di Z., Zhang J., Li X., Chen J., Applied Physics Letters, 91, (2009)
  • [9] Konstantaki M., Candiani A., Pissadakis S., Magnetic Tuning of Optical Fibre Long Period Gratings Utilizing Ferrofluids, 11th International Conference on Transparent Optical Networks, (2009)
  • [10] Zu P., Xiang W., Bai Y., Jin Y., Acta Optica Sinica, 31, (2011)
12