High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop
Abstract A high-sensitivity all-fiber temperature sensor based on a Sagnac interferometer is demonstrated by splicing a section of polarization maintaining fiber (PMF) between two sections of standard single mode fibers (SMFs). In this sensor, the SMF-PMF-SMF structure in the Sagnac loop is bent int...
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doaj-7959e373900048798df3b88a3fcdd5602020-11-25T01:49:19ZengSpringerOpenPhotonic Sensors1674-92512190-74392018-10-0191253210.1007/s13320-018-0517-6High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac LoopLaipeng Shao0Junhui Hu1Hanglin Lu2Jing Du3Tianyin Wu4Yiping Wang5Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen UniversityCollege of Physics Science and Technology, Guangxi Normal UniversityCollege of Physics Science and Technology, Guangxi Normal UniversityCollege of Physics Science and Technology, Guangxi Normal UniversityCollege of Physics Science and Technology, Guangxi Normal UniversityKey Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen UniversityAbstract A high-sensitivity all-fiber temperature sensor based on a Sagnac interferometer is demonstrated by splicing a section of polarization maintaining fiber (PMF) between two sections of standard single mode fibers (SMFs). In this sensor, the SMF-PMF-SMF structure in the Sagnac loop is bent into a circle to enhance the sensitivity. The length and curvature of the PMF in the loop are investigated and can be optimized to further increase the temperature sensitivity of the sensor. Results show that the radius of the circle has an important effect upon temperature sensitivity due to the bend-induced birefringence variation of the PMF. The SMF-PMF-SMF structure bent into a circle with a radius of 30 mm exhibits a high-sensitivity temperature of 1.73 nm/°C. The sensor is provided with the advantages of easy fabrication, low-insertion loss, and high sensitivity, which may find potential applications in the field of high precision temperature measurement.http://link.springer.com/article/10.1007/s13320-018-0517-6Optical fiber sensorpolarization maintaining fibertemperature sensorSagnac loop |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Laipeng Shao Junhui Hu Hanglin Lu Jing Du Tianyin Wu Yiping Wang |
spellingShingle |
Laipeng Shao Junhui Hu Hanglin Lu Jing Du Tianyin Wu Yiping Wang High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop Photonic Sensors Optical fiber sensor polarization maintaining fiber temperature sensor Sagnac loop |
author_facet |
Laipeng Shao Junhui Hu Hanglin Lu Jing Du Tianyin Wu Yiping Wang |
author_sort |
Laipeng Shao |
title |
High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop |
title_short |
High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop |
title_full |
High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop |
title_fullStr |
High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop |
title_full_unstemmed |
High-Sensitivity Temperature Sensor Based on Polarization Maintaining Fiber Sagnac Loop |
title_sort |
high-sensitivity temperature sensor based on polarization maintaining fiber sagnac loop |
publisher |
SpringerOpen |
series |
Photonic Sensors |
issn |
1674-9251 2190-7439 |
publishDate |
2018-10-01 |
description |
Abstract A high-sensitivity all-fiber temperature sensor based on a Sagnac interferometer is demonstrated by splicing a section of polarization maintaining fiber (PMF) between two sections of standard single mode fibers (SMFs). In this sensor, the SMF-PMF-SMF structure in the Sagnac loop is bent into a circle to enhance the sensitivity. The length and curvature of the PMF in the loop are investigated and can be optimized to further increase the temperature sensitivity of the sensor. Results show that the radius of the circle has an important effect upon temperature sensitivity due to the bend-induced birefringence variation of the PMF. The SMF-PMF-SMF structure bent into a circle with a radius of 30 mm exhibits a high-sensitivity temperature of 1.73 nm/°C. The sensor is provided with the advantages of easy fabrication, low-insertion loss, and high sensitivity, which may find potential applications in the field of high precision temperature measurement. |
topic |
Optical fiber sensor polarization maintaining fiber temperature sensor Sagnac loop |
url |
http://link.springer.com/article/10.1007/s13320-018-0517-6 |
work_keys_str_mv |
AT laipengshao highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop AT junhuihu highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop AT hanglinlu highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop AT jingdu highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop AT tianyinwu highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop AT yipingwang highsensitivitytemperaturesensorbasedonpolarizationmaintainingfibersagnacloop |
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1725007381089222656 |