- CHENG Qi-hang
CHENG Qi-hang
Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Search for this author on this site - ZHANG Ai-ling
ZHANG Ai-ling
Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Search for this author on this site - PAN Hong-gang
PAN Hong-gang
Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Search for this author on this site - LI Wen
LI Wen
Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Search for this author on this site - SUN Ce
SUN Ce
Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Communica-tion Devices and Technology, Ministry of Education, School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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A simple structure optical fiber sensor for relative humidity (RH) and temperature measurement is proposed and verified in this paper, which is based on graphene oxide quantum dots and polyvinyl alcohol (GOQDs-PVA) composite coated tapered no-core fiber (NCF) combined with a fiber Bragg grating (FBG). FBG is insensitive to humidity and sensitive to temperature, which is used to compensate temperature of the sensor. Experimental results show this sensor has humidity sensitivity of 143.27 pm/%RH ranging from 30%RH to 80%RH and the temperature sensitivity of 9.21 pm/℃. The proposed sensor has advantages of simple structure, good repeatability, and good stability, which is expected to be used in both RH and temperature measurement in biological and chemical fields.
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CHENG Qi-hang, ZHANG Ai-ling, PAN Hong-gang, LI Wen, SUN Ce. Humidity and temperature sensor based on GOQDs-PVA coated tapered no-core fiber combined with FBG[J]. Optoelectronics Letters,2020,16(6):428-432
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- Received:December 17,2019
- Revised:February 03,2020
- Online: October 16,2020
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