Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor

A novel twin-core photonic crystal fiber-based sensor for simultaneous measurement of curvature, strain and temperature is proposed. The fiber sensor is constructed by splicing the homemade twin-core photonic crystal fiber between two segments of single mode fiber. Affected by the coupling between t...

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Main Authors:	Tongtong Zhao, Shuqin Lou, Xin Wang, Wan Zhang, Yulei Wang
Format:	Article
Language:	English
Published:	MDPI AG 2018-07-01
Series:	Sensors
Subjects:	optical fiber sensor photonic crystal fiber twin-core fiber
Online Access:	http://www.mdpi.com/1424-8220/18/7/2145

id	doaj-3f5af20f945e4d81987aef5de2c9277a
record_format	Article
spelling	doaj-3f5af20f945e4d81987aef5de2c9277a2020-11-24T21:49:15ZengMDPI AGSensors1424-82202018-07-01187214510.3390/s18072145s18072145Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based SensorTongtong Zhao0Shuqin Lou1Xin Wang2Wan Zhang3Yulei Wang4School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaNational Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, ChinaA novel twin-core photonic crystal fiber-based sensor for simultaneous measurement of curvature, strain and temperature is proposed. The fiber sensor is constructed by splicing the homemade twin-core photonic crystal fiber between two segments of single mode fiber. Affected by the coupling between two cores, the transmission spectrum of the fiber sensor has different wavelength responses to curvature, strain, and temperature. The maximal sensitivities to curvature, strain and temperature are 10.89 nm/m−1, 1.24 pm/με and 73.9 pm/°C, respectively. Simultaneous measurement of curvature, strain and temperature can be achieved by monitoring the wavelength shifts of selected valleys in the transmission spectrum. Contrast experiment based on traditional twin-core fiber is carried out. Experimental results demonstrate that twin-core photonic crystal fiber-based sensor has higher sensitivity and better linearity than traditional twin-core fiber-based sensor.http://www.mdpi.com/1424-8220/18/7/2145optical fiber sensorphotonic crystal fibertwin-core fiber
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Tongtong Zhao Shuqin Lou Xin Wang Wan Zhang Yulei Wang
spellingShingle	Tongtong Zhao Shuqin Lou Xin Wang Wan Zhang Yulei Wang Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor Sensors optical fiber sensor photonic crystal fiber twin-core fiber
author_facet	Tongtong Zhao Shuqin Lou Xin Wang Wan Zhang Yulei Wang
author_sort	Tongtong Zhao
title	Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor
title_short	Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor
title_full	Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor
title_fullStr	Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor
title_full_unstemmed	Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor
title_sort	simultaneous measurement of curvature, strain and temperature using a twin-core photonic crystal fiber-based sensor
publisher	MDPI AG
series	Sensors
issn	1424-8220
publishDate	2018-07-01
description	A novel twin-core photonic crystal fiber-based sensor for simultaneous measurement of curvature, strain and temperature is proposed. The fiber sensor is constructed by splicing the homemade twin-core photonic crystal fiber between two segments of single mode fiber. Affected by the coupling between two cores, the transmission spectrum of the fiber sensor has different wavelength responses to curvature, strain, and temperature. The maximal sensitivities to curvature, strain and temperature are 10.89 nm/m−1, 1.24 pm/με and 73.9 pm/°C, respectively. Simultaneous measurement of curvature, strain and temperature can be achieved by monitoring the wavelength shifts of selected valleys in the transmission spectrum. Contrast experiment based on traditional twin-core fiber is carried out. Experimental results demonstrate that twin-core photonic crystal fiber-based sensor has higher sensitivity and better linearity than traditional twin-core fiber-based sensor.
topic	optical fiber sensor photonic crystal fiber twin-core fiber
url	http://www.mdpi.com/1424-8220/18/7/2145
work_keys_str_mv	AT tongtongzhao simultaneousmeasurementofcurvaturestrainandtemperatureusingatwincorephotoniccrystalfiberbasedsensor AT shuqinlou simultaneousmeasurementofcurvaturestrainandtemperatureusingatwincorephotoniccrystalfiberbasedsensor AT xinwang simultaneousmeasurementofcurvaturestrainandtemperatureusingatwincorephotoniccrystalfiberbasedsensor AT wanzhang simultaneousmeasurementofcurvaturestrainandtemperatureusingatwincorephotoniccrystalfiberbasedsensor AT yuleiwang simultaneousmeasurementofcurvaturestrainandtemperatureusingatwincorephotoniccrystalfiberbasedsensor
_version_	1725888491356684288

Simultaneous Measurement of Curvature, Strain and Temperature Using a Twin-Core Photonic Crystal Fiber-Based Sensor

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