Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber
A simple and efficient manufacture method of helical long period fiber grating (HLPFG) in a single-mode fiber (SMF) is designed and verified through experiment. Different from the previous fabricating methods, the SMF is heated by a double-side CO<sub>2</sub> laser beam after being twist...
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| Format: | Article |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8701459/ |
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| author | Yujian Li Ping Lu Chi Zhang Wenjun Ni Deming Liu Jiangshan Zhang |
| author_facet | Yujian Li Ping Lu Chi Zhang Wenjun Ni Deming Liu Jiangshan Zhang |
| author_sort | Yujian Li |
| collection | DOAJ |
| description | A simple and efficient manufacture method of helical long period fiber grating (HLPFG) in a single-mode fiber (SMF) is designed and verified through experiment. Different from the previous fabricating methods, the SMF is heated by a double-side CO<sub>2</sub> laser beam after being twisted. There are multiple transmission depletions caused by model coupling which could be observed when the period length is 500 μm. The sensing characteristics of the HLPFG have been investigated. Experimental results demonstrate axial strain sensitivities of 3.3 and 6.4 pm/μϵ at the selected dips in the range of 0–450 μϵ or temperature sensitivities of 35.3 and 49.5 pm/°C at the selected dips in the range of 20–70 °C, respectively. Moreover, through theoretical analysis, it is found that the fabricated HLPFG can measure axial strain and temperature concurrently by monitoring the resonance wavelength shift. Therefore, the fabricated HLPFG has brilliant applications value in dual measurement. |
| format | Article |
| id | doaj-art-13a9883c91184affb40e0a2cf76bf58f |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-13a9883c91184affb40e0a2cf76bf58f2025-08-20T03:30:57ZengIEEEIEEE Photonics Journal1943-06552019-01-011131810.1109/JPHOT.2019.29137008701459Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode FiberYujian Li0Ping Lu1https://orcid.org/0000-0003-4872-9805Chi Zhang2Wenjun Ni3https://orcid.org/0000-0002-8603-5604Deming Liu4Jiangshan Zhang5School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, ChinaA simple and efficient manufacture method of helical long period fiber grating (HLPFG) in a single-mode fiber (SMF) is designed and verified through experiment. Different from the previous fabricating methods, the SMF is heated by a double-side CO<sub>2</sub> laser beam after being twisted. There are multiple transmission depletions caused by model coupling which could be observed when the period length is 500 μm. The sensing characteristics of the HLPFG have been investigated. Experimental results demonstrate axial strain sensitivities of 3.3 and 6.4 pm/μϵ at the selected dips in the range of 0–450 μϵ or temperature sensitivities of 35.3 and 49.5 pm/°C at the selected dips in the range of 20–70 °C, respectively. Moreover, through theoretical analysis, it is found that the fabricated HLPFG can measure axial strain and temperature concurrently by monitoring the resonance wavelength shift. Therefore, the fabricated HLPFG has brilliant applications value in dual measurement.https://ieeexplore.ieee.org/document/8701459/Helical long period fiber gratingaxial straintemperaturesimultaneous measurement |
| spellingShingle | Yujian Li Ping Lu Chi Zhang Wenjun Ni Deming Liu Jiangshan Zhang Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber IEEE Photonics Journal Helical long period fiber grating axial strain temperature simultaneous measurement |
| title | Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber |
| title_full | Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber |
| title_fullStr | Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber |
| title_full_unstemmed | Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber |
| title_short | Sensing Characterization of Helical Long Period Fiber Grating Fabricated by a Double-Side CO<sub>2</sub> Laser in Single-Mode Fiber |
| title_sort | sensing characterization of helical long period fiber grating fabricated by a double side co sub 2 sub laser in single mode fiber |
| topic | Helical long period fiber grating axial strain temperature simultaneous measurement |
| url | https://ieeexplore.ieee.org/document/8701459/ |
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