Simultaneous measurement of temperature and strain using a long-period fiber grating with a micro-taper

被引：0
作者：
Tao Geng
Jian Li
Wenlei Yang
Maowei An
Hongyi Zeng
Fan Yang
Zhengji Cui
Libo Yuan
机构：
[1] Harbin Engineering University,Key Lab of In
来源：
Optical Review | 2016年 / 23卷
关键词：
Simultaneous measurement; Temperature; Strain; Mach–Zehnder interferometer; Long-period fiber grating;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An all-fiber Mach–Zehnder interferometer (MZI) consisting of a long-period fiber grating with a micro-taper is proposed for simultaneous measurement of temperature and strain. The experimental results demonstrate that the temperature and strain sensitivities of the proposed MZI are 83 pm/°C and −2.6 pm/με, respectively. The strain sensitivity is 20 times as high as that of a long-period fiber written by CO2 laser pulses combined with a fiber bitaper. In addition, the interferometer requires only a common single-mode fiber, and it is easy to fabricate and is inexpensive for temperature and strain sensing applications.
引用
收藏
页码：657 / 661
页数：4
相关论文
共 32 条
  • [1] Liu Y(2000)Optical bend sensor based on measurement of resonance mode splitting of long-period fiber grating IEEE Photonics Technol. Lett. 12 531-533
  • [2] Zhang L(2013)Long-period fiber grating cascaded to an S fiber taper for simultaneous measurement of temperature and refractive index IEEE Photonics Technol. Lett. 25 888-891
  • [3] Williams JAR(2012)High sensitivity Mach–Zehnder interferometer sensors based on concatenated ultra-abrupt tapers on thinned fibers Opt. Laser Technol. 44 640-645
  • [4] Bennion I(2013)Temperature insensitive high-precision refractive-index sensor using two concatenated dual-resonance long-period gratings Opt. Lett. 38 1666-1668
  • [5] Li J(2014)High-sensitivity sensor design based on cascaded long period fiber grating with film coating Optical Eng. 53 021104-1-021104-7
  • [6] Li B(1999)Dependence of fringe spacing on the grating separation in a long-period fiber grating pair Appl. Opt. 38 3450-3459
  • [7] Tripathi SM(2004)Mach–Zehnder interferometer formed in a photonic crystal fiber based on a pair of long-period fiber gratings Opt. Lett. 29 346-348
  • [8] Bock W(2012)All-fiber intermodal Mach-Zehnder interferometer based on a long-period fiber grating combined with a fiber bitaper Opt. Commun. 285 3935-3938
  • [9] Kumar A(2005)Holey fiber tapers with resonance transmission for high-resolution refractive index sensing Opt. Express 13 7609-7614
  • [10] Mikulic P(2006)Optical inclinometer based on a single long-period fiber grating with a fused taper Opt. Lett. 31 2960-2962
1234