Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers
A highly sensitive torsion sensor can be constructed by combining a twisted photonic crystal fiber with a liquid-filled waveguide in its air-hole cladding. The torsion sensitivity of this type of sensor is determined directly by the phase-matching conditions between the fiber core mode and the liqui...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-03-01
|
Series: | Sensors |
Subjects: | |
Online Access: | https://www.mdpi.com/1424-8220/20/5/1490 |
id |
doaj-58839d061ca64d8bb13b183265e3de41 |
---|---|
record_format |
Article |
spelling |
doaj-58839d061ca64d8bb13b183265e3de412020-11-25T02:27:36ZengMDPI AGSensors1424-82202020-03-01205149010.3390/s20051490s20051490Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal FibersFeng Zhang0Ying Wang1Zhiyong Bai2Shen Liu3Cailing Fu4Yijian Huang5Changrui Liao6Yiping Wang7Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaKey Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaA highly sensitive torsion sensor can be constructed by combining a twisted photonic crystal fiber with a liquid-filled waveguide in its air-hole cladding. The torsion sensitivity of this type of sensor is determined directly by the phase-matching conditions between the fiber core mode and the liquid waveguide mode, which can be improved by tuning the helicity (denoted by the initial twist rate, <i>α</i><sub>0</sub>) of the twisted photonic crystal fiber. The enhancement mechanism of <i>α</i><sub>0</sub> on the sensitivity of the proposed torsion sensor is investigated theoretically, followed by experimental verifications, and a torsion sensitivity as high as 446 nm∙mm∙rad<sup>−1</sup> can be obtained by tailoring these parameters. Experimental results show that the torsion sensitivity increases with <i>α</i><sub>0</sub> decreasing from 3.142 to 3.925 rad/mm, which are in consistence with that of the numerical predictions. The demonstrated torsion sensor is expected to contribute to the development of highly sensitive torsion-related photonic crystal fiber devices.https://www.mdpi.com/1424-8220/20/5/1490fiber optics sensorsphotonic crystal fibersmicrostructure fabrication |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Feng Zhang Ying Wang Zhiyong Bai Shen Liu Cailing Fu Yijian Huang Changrui Liao Yiping Wang |
spellingShingle |
Feng Zhang Ying Wang Zhiyong Bai Shen Liu Cailing Fu Yijian Huang Changrui Liao Yiping Wang Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers Sensors fiber optics sensors photonic crystal fibers microstructure fabrication |
author_facet |
Feng Zhang Ying Wang Zhiyong Bai Shen Liu Cailing Fu Yijian Huang Changrui Liao Yiping Wang |
author_sort |
Feng Zhang |
title |
Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers |
title_short |
Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers |
title_full |
Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers |
title_fullStr |
Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers |
title_full_unstemmed |
Helicity Enhanced Torsion Sensor Based on Liquid Filled Twisted Photonic Crystal Fibers |
title_sort |
helicity enhanced torsion sensor based on liquid filled twisted photonic crystal fibers |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2020-03-01 |
description |
A highly sensitive torsion sensor can be constructed by combining a twisted photonic crystal fiber with a liquid-filled waveguide in its air-hole cladding. The torsion sensitivity of this type of sensor is determined directly by the phase-matching conditions between the fiber core mode and the liquid waveguide mode, which can be improved by tuning the helicity (denoted by the initial twist rate, <i>α</i><sub>0</sub>) of the twisted photonic crystal fiber. The enhancement mechanism of <i>α</i><sub>0</sub> on the sensitivity of the proposed torsion sensor is investigated theoretically, followed by experimental verifications, and a torsion sensitivity as high as 446 nm∙mm∙rad<sup>−1</sup> can be obtained by tailoring these parameters. Experimental results show that the torsion sensitivity increases with <i>α</i><sub>0</sub> decreasing from 3.142 to 3.925 rad/mm, which are in consistence with that of the numerical predictions. The demonstrated torsion sensor is expected to contribute to the development of highly sensitive torsion-related photonic crystal fiber devices. |
topic |
fiber optics sensors photonic crystal fibers microstructure fabrication |
url |
https://www.mdpi.com/1424-8220/20/5/1490 |
work_keys_str_mv |
AT fengzhang helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT yingwang helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT zhiyongbai helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT shenliu helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT cailingfu helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT yijianhuang helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT changruiliao helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers AT yipingwang helicityenhancedtorsionsensorbasedonliquidfilledtwistedphotoniccrystalfibers |
_version_ |
1724842057183264768 |