Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement

A highly sensitive optical fiber sensor for the measurement of axial force and refractive index (RI) is presented. The optical sensor consists of a distributed Bragg reflector (DBR) based fiber laser, the laser cavity of the DBR is polished to D-shape by the wheel fiber polishing system. Birefringen...

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Main Authors: Xinfeng Yang, Sankhyabrata Bandyopadhyay, Li-Yang Shao, Dongrui Xiao, Guoqiang Gu, Zhangqi Song
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8723587/
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author Xinfeng Yang
Sankhyabrata Bandyopadhyay
Li-Yang Shao
Dongrui Xiao
Guoqiang Gu
Zhangqi Song
author_facet Xinfeng Yang
Sankhyabrata Bandyopadhyay
Li-Yang Shao
Dongrui Xiao
Guoqiang Gu
Zhangqi Song
author_sort Xinfeng Yang
collection DOAJ
description A highly sensitive optical fiber sensor for the measurement of axial force and refractive index (RI) is presented. The optical sensor consists of a distributed Bragg reflector (DBR) based fiber laser, the laser cavity of the DBR is polished to D-shape by the wheel fiber polishing system. Birefringence has been introduced with side polishing of the fiber, and then, it is utilized for sensing applications. The working principle of the device is based on the principle of the change in beat frequency of the two orthogonal polarization modes of the DBR fiber laser with external perturbations. In this work, it has been shown that the dual polarization beat frequency can be used for RI-based measurement applications along with the measurement of the axial force. The sensitivity of the DBR fiber laser sensor with change in axial force is enhanced significantly with side polishing. Such a device is robust, simple in fabrication and most importantly low-cost interrogation techniques can be used for the detection purpose. A resolution of 5.6014 &#x00D7; 10<sup>-8</sup> N has been achieved in case of recognition of axial force and 1.9259 &#x00D7; 10<sup>-5</sup> RIU is the observable detection limit for the RI based measurement.
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spelling doaj.art-6cd8c20bb7844520a3f7c0eb05ebc1372022-12-21T18:15:55ZengIEEEIEEE Photonics Journal1943-06552019-01-0111311010.1109/JPHOT.2019.29193928723587Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index MeasurementXinfeng Yang0https://orcid.org/0000-0003-0305-2319Sankhyabrata Bandyopadhyay1https://orcid.org/0000-0003-1152-7687Li-Yang Shao2https://orcid.org/0000-0003-1272-1959Dongrui Xiao3Guoqiang Gu4Zhangqi Song5Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaA highly sensitive optical fiber sensor for the measurement of axial force and refractive index (RI) is presented. The optical sensor consists of a distributed Bragg reflector (DBR) based fiber laser, the laser cavity of the DBR is polished to D-shape by the wheel fiber polishing system. Birefringence has been introduced with side polishing of the fiber, and then, it is utilized for sensing applications. The working principle of the device is based on the principle of the change in beat frequency of the two orthogonal polarization modes of the DBR fiber laser with external perturbations. In this work, it has been shown that the dual polarization beat frequency can be used for RI-based measurement applications along with the measurement of the axial force. The sensitivity of the DBR fiber laser sensor with change in axial force is enhanced significantly with side polishing. Such a device is robust, simple in fabrication and most importantly low-cost interrogation techniques can be used for the detection purpose. A resolution of 5.6014 &#x00D7; 10<sup>-8</sup> N has been achieved in case of recognition of axial force and 1.9259 &#x00D7; 10<sup>-5</sup> RIU is the observable detection limit for the RI based measurement.https://ieeexplore.ieee.org/document/8723587/distributed Bragg reflector fiber laseraxial force sensorrefractive index sensordual-polarization beat frequency
spellingShingle Xinfeng Yang
Sankhyabrata Bandyopadhyay
Li-Yang Shao
Dongrui Xiao
Guoqiang Gu
Zhangqi Song
Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
IEEE Photonics Journal
distributed Bragg reflector fiber laser
axial force sensor
refractive index sensor
dual-polarization beat frequency
title Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
title_full Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
title_fullStr Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
title_full_unstemmed Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
title_short Side-Polished DBR Fiber Laser with Enhanced Sensitivity for Axial Force and Refractive Index Measurement
title_sort side polished dbr fiber laser with enhanced sensitivity for axial force and refractive index measurement
topic distributed Bragg reflector fiber laser
axial force sensor
refractive index sensor
dual-polarization beat frequency
url https://ieeexplore.ieee.org/document/8723587/
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AT sankhyabratabandyopadhyay sidepolisheddbrfiberlaserwithenhancedsensitivityforaxialforceandrefractiveindexmeasurement
AT liyangshao sidepolisheddbrfiberlaserwithenhancedsensitivityforaxialforceandrefractiveindexmeasurement
AT dongruixiao sidepolisheddbrfiberlaserwithenhancedsensitivityforaxialforceandrefractiveindexmeasurement
AT guoqianggu sidepolisheddbrfiberlaserwithenhancedsensitivityforaxialforceandrefractiveindexmeasurement
AT zhangqisong sidepolisheddbrfiberlaserwithenhancedsensitivityforaxialforceandrefractiveindexmeasurement