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Fiber Core-Offset Humidity Sensor Based on Graphene Oxide Characteristics
On the basis of the photoelectric properties and hydrophilicity and multimode interference of Graphene Oxide (GO), this study proposes an all-fiber humidity sensor. Two core-offset regions are constructed with a fiber fusion splicer, and a GO film is coated on a single-mode fiber (SMF) between the c...
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Published in: | IEEE photonics journal 2021-06, Vol.13 (3), p.1-8 |
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description | On the basis of the photoelectric properties and hydrophilicity and multimode interference of Graphene Oxide (GO), this study proposes an all-fiber humidity sensor. Two core-offset regions are constructed with a fiber fusion splicer, and a GO film is coated on a single-mode fiber (SMF) between the core-offset regions to form a humidity-sensitive Mach-Zehnder interference structure. As the external humidity environment changes, the refractive index of the GO changes, and the light in the SMF is modulated by humidity. External humidity is measured by detecting the changes in the wavelength of the transmission spectrum of the sensing structure. A saturated salt solution is used to build a stable humidity environment. The sensitivity of the sensor is 0.05 nm/% relative humidity (RH) at 35.3%-95.8% RH, and the linear relationship between the characteristic wavelength and RH is 88%. In addition, the linear relationship between the light intensity and the RH of the sensor at a single wavelength at 1571 nm is analyzed, and the linearity is 97.45%. According to this finding, photoelectric conversion is used to convert the light intensity signal into a voltage signal. The data are processed by a computer to achieve the real-time and visual monitoring of the humidity environment. The fiber optic humidity sensor proposed in this work has a simple structure, simple production, low cost, and high sensitivity. This work provides a new method for humidity sensing. |
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Two core-offset regions are constructed with a fiber fusion splicer, and a GO film is coated on a single-mode fiber (SMF) between the core-offset regions to form a humidity-sensitive Mach-Zehnder interference structure. As the external humidity environment changes, the refractive index of the GO changes, and the light in the SMF is modulated by humidity. External humidity is measured by detecting the changes in the wavelength of the transmission spectrum of the sensing structure. A saturated salt solution is used to build a stable humidity environment. The sensitivity of the sensor is 0.05 nm/% relative humidity (RH) at 35.3%-95.8% RH, and the linear relationship between the characteristic wavelength and RH is 88%. In addition, the linear relationship between the light intensity and the RH of the sensor at a single wavelength at 1571 nm is analyzed, and the linearity is 97.45%. According to this finding, photoelectric conversion is used to convert the light intensity signal into a voltage signal. The data are processed by a computer to achieve the real-time and visual monitoring of the humidity environment. The fiber optic humidity sensor proposed in this work has a simple structure, simple production, low cost, and high sensitivity. This work provides a new method for humidity sensing.</description><identifier>ISSN: 1943-0655</identifier><identifier>EISSN: 1943-0655</identifier><identifier>EISSN: 1943-0647</identifier><identifier>DOI: 10.1109/JPHOT.2021.3083699</identifier><identifier>CODEN: PJHOC3</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>core-offset ; Fiber optics ; Graphene ; Graphene Oxide ; Humidity ; Interference ; Luminous intensity ; Mach–Zehnder interference ; Optical fiber polarization ; Optical fiber sensing ; Optical fiber sensors ; Optical fibers ; Photoelectric effect ; Photoelectricity ; Refractive index ; Refractivity ; Relative humidity ; Saline solutions ; Sensitivity ; Sensors ; Signal processing</subject><ispartof>IEEE photonics journal, 2021-06, Vol.13 (3), p.1-8</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-4c32c67b2f2a6a16fddb1b03eb944897e7a5fd9954a21bd4d55bccb713908aed3</citedby><cites>FETCH-LOGICAL-c405t-4c32c67b2f2a6a16fddb1b03eb944897e7a5fd9954a21bd4d55bccb713908aed3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9440728$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,27633,27924,27925,54933</link.rule.ids></links><search><creatorcontrib>Wang, Zenghui</creatorcontrib><creatorcontrib>Li, Lianqin</creatorcontrib><creatorcontrib>Wang, Mengjiao</creatorcontrib><creatorcontrib>Ma, Qianqian</creatorcontrib><creatorcontrib>Lou, Yan</creatorcontrib><creatorcontrib>Wu, Qiong</creatorcontrib><creatorcontrib>Peng, Baojin</creatorcontrib><title>Fiber Core-Offset Humidity Sensor Based on Graphene Oxide Characteristics</title><title>IEEE photonics journal</title><addtitle>JPHOT</addtitle><description>On the basis of the photoelectric properties and hydrophilicity and multimode interference of Graphene Oxide (GO), this study proposes an all-fiber humidity sensor. Two core-offset regions are constructed with a fiber fusion splicer, and a GO film is coated on a single-mode fiber (SMF) between the core-offset regions to form a humidity-sensitive Mach-Zehnder interference structure. As the external humidity environment changes, the refractive index of the GO changes, and the light in the SMF is modulated by humidity. External humidity is measured by detecting the changes in the wavelength of the transmission spectrum of the sensing structure. A saturated salt solution is used to build a stable humidity environment. The sensitivity of the sensor is 0.05 nm/% relative humidity (RH) at 35.3%-95.8% RH, and the linear relationship between the characteristic wavelength and RH is 88%. In addition, the linear relationship between the light intensity and the RH of the sensor at a single wavelength at 1571 nm is analyzed, and the linearity is 97.45%. According to this finding, photoelectric conversion is used to convert the light intensity signal into a voltage signal. The data are processed by a computer to achieve the real-time and visual monitoring of the humidity environment. The fiber optic humidity sensor proposed in this work has a simple structure, simple production, low cost, and high sensitivity. This work provides a new method for humidity sensing.</description><subject>core-offset</subject><subject>Fiber optics</subject><subject>Graphene</subject><subject>Graphene Oxide</subject><subject>Humidity</subject><subject>Interference</subject><subject>Luminous intensity</subject><subject>Mach–Zehnder interference</subject><subject>Optical fiber polarization</subject><subject>Optical fiber sensing</subject><subject>Optical fiber sensors</subject><subject>Optical fibers</subject><subject>Photoelectric effect</subject><subject>Photoelectricity</subject><subject>Refractive index</subject><subject>Refractivity</subject><subject>Relative humidity</subject><subject>Saline solutions</subject><subject>Sensitivity</subject><subject>Sensors</subject><subject>Signal processing</subject><issn>1943-0655</issn><issn>1943-0655</issn><issn>1943-0647</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>DOA</sourceid><recordid>eNpNkFtLw0AQhYMoWKt_QF8CPqfuNck-arAXKUSwPi97mdgtbbbupmD_vWkrxacZhjlnznxJco_RCGMknt7ep_ViRBDBI4pKmgtxkQywYDRDOeeX__rr5CbGFUK5wFwMktnYaQhp5QNkddNE6NLpbuOs6_bpB7TRh_RFRbCpb9NJUNsltJDWP85CWi1VUKaD4GLnTLxNrhq1jnD3V4fJ5_h1UU2zeT2ZVc_zzDDEu4wZSkxeaNIQlSucN9ZqrBEFLRgrRQGF4o0VgjNFsLbMcq6N0QWmApUKLB32mY--1quV3Aa3UWEvvXLyOPDhS6rQB1qDVGCY5kZjbBlrDNIYtCopZ4LlZcFx7_V48toG_72D2MmV34W2jy8Jp0IURU5Zv0VOWyb4GAM056sYyQN-ecQvD_jlH_5e9HASOQA4C_ofUUFK-gtd4oC7</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Wang, Zenghui</creator><creator>Li, Lianqin</creator><creator>Wang, Mengjiao</creator><creator>Ma, Qianqian</creator><creator>Lou, Yan</creator><creator>Wu, Qiong</creator><creator>Peng, Baojin</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Two core-offset regions are constructed with a fiber fusion splicer, and a GO film is coated on a single-mode fiber (SMF) between the core-offset regions to form a humidity-sensitive Mach-Zehnder interference structure. As the external humidity environment changes, the refractive index of the GO changes, and the light in the SMF is modulated by humidity. External humidity is measured by detecting the changes in the wavelength of the transmission spectrum of the sensing structure. A saturated salt solution is used to build a stable humidity environment. The sensitivity of the sensor is 0.05 nm/% relative humidity (RH) at 35.3%-95.8% RH, and the linear relationship between the characteristic wavelength and RH is 88%. In addition, the linear relationship between the light intensity and the RH of the sensor at a single wavelength at 1571 nm is analyzed, and the linearity is 97.45%. According to this finding, photoelectric conversion is used to convert the light intensity signal into a voltage signal. The data are processed by a computer to achieve the real-time and visual monitoring of the humidity environment. The fiber optic humidity sensor proposed in this work has a simple structure, simple production, low cost, and high sensitivity. This work provides a new method for humidity sensing.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/JPHOT.2021.3083699</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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subjects | core-offset Fiber optics Graphene Graphene Oxide Humidity Interference Luminous intensity Mach–Zehnder interference Optical fiber polarization Optical fiber sensing Optical fiber sensors Optical fibers Photoelectric effect Photoelectricity Refractive index Refractivity Relative humidity Saline solutions Sensitivity Sensors Signal processing |
title | Fiber Core-Offset Humidity Sensor Based on Graphene Oxide Characteristics |
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