Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer

Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer

We experimentally demonstrated a strain sensor based on fiber ring cavity laser with a photonic crystal fiber (PCF) in-line Mach-Zehnder interferometer (MZI) structure, which is used as an optical band-pass filter and acts as the strain sensing component. The fiber ring cavity laser plays the role o...

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Main Authors: Xuekun Bai, Dengfeng Fan, Shaofei Wang, Shengli Pu, Xianglong Zeng
Format: Article
Language:English
Published: IEEE 2014-01-01
Series:IEEE Photonics Journal
Online Access:https://ieeexplore.ieee.org/document/6842630/
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spelling doaj-b8e46863bd6c4a8bad6c37843fd31f242021-03-29T17:18:34ZengIEEEIEEE Photonics Journal1943-06552014-01-01641810.1109/JPHOT.2014.23324546842630Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder InterferometerXuekun Bai0Dengfeng Fan1Shaofei Wang2Shengli Pu3Xianglong Zeng4Key Lab. of Specialty Fiber Opt. & Opt. Access Network, Shanghai Univ., Shanghai, ChinaKey Lab. of Specialty Fiber Opt. & Opt. Access Network, Shanghai Univ., Shanghai, ChinaKey Lab. of Specialty Fiber Opt. & Opt. Access Network, Shanghai Univ., Shanghai, ChinaColl. of Sci., Univ. of Shanghai for Sci. & Technol., Shanghai, ChinaColl. of Sci., Univ. of Shanghai for Sci. & Technol., Shanghai, ChinaWe experimentally demonstrated a strain sensor based on fiber ring cavity laser with a photonic crystal fiber (PCF) in-line Mach-Zehnder interferometer (MZI) structure, which is used as an optical band-pass filter and acts as the strain sensing component. The fiber ring cavity laser plays the role of enhancing the visibility of the resonant spectrum and narrowing the corresponding 3-dB bandwidth, thus improving the comprehensive sensing performance. The induced axial strain on the structure is measured by monitoring the central wavelengths of the laser output. A high strain sensing sensitivity of 2.1 pm/με is successfully achieved in the linear strain range of 0-2100 με. A parameter Q value describing the overall sensing performance is introduced by including the strain sensing sensitivity, sensing sensitivity relative to 3-dB bandwidth of the resonant spectrum and the corresponding visibility. Comparing with the reported strain measurements based on a PCF in-line MZI structure, the experimental results based on fiber ring cavity laser sensor present more than nine times larger Q value.https://ieeexplore.ieee.org/document/6842630/
collection DOAJ
language English
format Article
sources DOAJ
author Xuekun Bai
Dengfeng Fan
Shaofei Wang
Shengli Pu
Xianglong Zeng
spellingShingle Xuekun Bai
Dengfeng Fan
Shaofei Wang
Shengli Pu
Xianglong Zeng
Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
IEEE Photonics Journal
author_facet Xuekun Bai
Dengfeng Fan
Shaofei Wang
Shengli Pu
Xianglong Zeng
author_sort Xuekun Bai
title Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
title_short Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
title_full Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
title_fullStr Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
title_full_unstemmed Strain Sensor Based on Fiber Ring Cavity Laser With Photonic Crystal Fiber In-Line Mach–Zehnder Interferometer
title_sort strain sensor based on fiber ring cavity laser with photonic crystal fiber in-line mach–zehnder interferometer
publisher IEEE
series IEEE Photonics Journal
issn 1943-0655
publishDate 2014-01-01
description We experimentally demonstrated a strain sensor based on fiber ring cavity laser with a photonic crystal fiber (PCF) in-line Mach-Zehnder interferometer (MZI) structure, which is used as an optical band-pass filter and acts as the strain sensing component. The fiber ring cavity laser plays the role of enhancing the visibility of the resonant spectrum and narrowing the corresponding 3-dB bandwidth, thus improving the comprehensive sensing performance. The induced axial strain on the structure is measured by monitoring the central wavelengths of the laser output. A high strain sensing sensitivity of 2.1 pm/με is successfully achieved in the linear strain range of 0-2100 με. A parameter Q value describing the overall sensing performance is introduced by including the strain sensing sensitivity, sensing sensitivity relative to 3-dB bandwidth of the resonant spectrum and the corresponding visibility. Comparing with the reported strain measurements based on a PCF in-line MZI structure, the experimental results based on fiber ring cavity laser sensor present more than nine times larger Q value.
url https://ieeexplore.ieee.org/document/6842630/
work_keys_str_mv AT xuekunbai strainsensorbasedonfiberringcavitylaserwithphotoniccrystalfiberinlinemachx2013zehnderinterferometer
AT dengfengfan strainsensorbasedonfiberringcavitylaserwithphotoniccrystalfiberinlinemachx2013zehnderinterferometer
AT shaofeiwang strainsensorbasedonfiberringcavitylaserwithphotoniccrystalfiberinlinemachx2013zehnderinterferometer
AT shenglipu strainsensorbasedonfiberringcavitylaserwithphotoniccrystalfiberinlinemachx2013zehnderinterferometer
AT xianglongzeng strainsensorbasedonfiberringcavitylaserwithphotoniccrystalfiberinlinemachx2013zehnderinterferometer
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