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Ultra-Sensitive Optical Fiber Humidity Sensor via Au-Film-Assisted Polyvinyl Alcohol Micro-Cavity and Vernier Effect | IEEE Journals & Magazine | IEEE Xplore

Ultra-Sensitive Optical Fiber Humidity Sensor via Au-Film-Assisted Polyvinyl Alcohol Micro-Cavity and Vernier Effect


Abstract:

To enhance humidity sensitivity, a parallel Fabry–Perot interferometer (FPI)-based Vernier scheme is theoretically and experimentally developed via the parallel and separ...Show More

Abstract:

To enhance humidity sensitivity, a parallel Fabry–Perot interferometer (FPI)-based Vernier scheme is theoretically and experimentally developed via the parallel and separated micro-cavities of polyvinyl alcohol (PVA) and hollow core fiber (HCF). Through Au-film assistance and fine attenuation adjustment, the matched light energy of micro-cavities is obtained and high-contrast envelope with ~11-fold improvement is demonstrated within the 200-nm range. Centering the \sim 77~\mu \text{m} length Au-PVA micro-cavity, the comprehensive tests in terms of humidity are conducted. The experimental results show that, owing to the magnification of Vernier effect, ultra-sensitive humidity response of −9.14 nm/%RH is gained. And the crosstalk of temperature is constrained within −0.0843%RH/°C. In addition, 0.505 s dynamic time-response is verified through field tests of breathing. With the merits of stability, compact size, and ease of operation, our scheme is very practical and has potential in the applications of humidity-related biochemical sensing and medical health monitoring.
Article Sequence Number: 7002009
Date of Publication: 03 January 2022

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Author image of Liangtao Hou
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Liangtao Hou received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2017 and 2020, respectively. He is currently pursuing the Ph.D. degree in physics with Harbin Institute of Technology, Weihai, China.
His current research focuses on fiber-optic sensors.
Liangtao Hou received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2017 and 2020, respectively. He is currently pursuing the Ph.D. degree in physics with Harbin Institute of Technology, Weihai, China.
His current research focuses on fiber-optic sensors.View more
Author image of Yan Li
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yan Li received the M.S. and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2008 and 2012.
He is an Associate Professor with Harbin Institute of Technology. He is currently interested in optical fiber sensors.
Yan Li received the M.S. and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2008 and 2012.
He is an Associate Professor with Harbin Institute of Technology. He is currently interested in optical fiber sensors.View more
Author image of Yiming Fu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yiming Fu received the B.S. degree from Harbin Institute of Technology, Weihai, China, in 2021, where he is currently pursuing the M.S. degree.
He is interested in optical fiber sensors.
Yiming Fu received the B.S. degree from Harbin Institute of Technology, Weihai, China, in 2021, where he is currently pursuing the M.S. degree.
He is interested in optical fiber sensors.View more
Author image of Jiuru Yang
Key laboratory of Electronics Engineering, College of Heilongjiang, Heilongjiang University, Harbin, China
Jiuru Yang received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2001 and 2004, respectively, and the Ph.D. degree in communications engineering from Harbin Institute of Technology, Harbin, in 2008.
He is currently a Professor with the College of Electronics Engineering, Heilongjiang University. His current research interests include optical fiber amplif...Show More
Jiuru Yang received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2001 and 2004, respectively, and the Ph.D. degree in communications engineering from Harbin Institute of Technology, Harbin, in 2008.
He is currently a Professor with the College of Electronics Engineering, Heilongjiang University. His current research interests include optical fiber amplif...View more
Author image of Weijiang Xu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Weijiang Xu received the M.S. degree from Harbin Institute of Technology, Weihai, China, in 2018, where he is currently pursuing the Ph.D. degree.
He is interested in optical fiber sensors.
Weijiang Xu received the M.S. degree from Harbin Institute of Technology, Weihai, China, in 2018, where he is currently pursuing the Ph.D. degree.
He is interested in optical fiber sensors.View more
Author image of Xiaokang Song
College of Electrical Engineering, Heilongjiang University, Harbin, China
Xiaokang Song received the B.S. degree from the School of Opto-electronic Information Science and Technology, Yantai University, Yantai, China, in 2018. She is currently pursuing the M.S. degree in physics electrics from Heilongjiang University, Harbin, China.
Her research interest is fiber-optic sensors.
Xiaokang Song received the B.S. degree from the School of Opto-electronic Information Science and Technology, Yantai University, Yantai, China, in 2018. She is currently pursuing the M.S. degree in physics electrics from Heilongjiang University, Harbin, China.
Her research interest is fiber-optic sensors.View more
Author image of Jinjian Li
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Jinjian Li received the M.S. degree from Shandong University of Technology, Zibo, China, in 2016. He is currently pursuing the Ph.D. degree with Harbin Institute of Technology, Weihai, China.
He is currently interested in optical fiber sensors.
Jinjian Li received the M.S. degree from Shandong University of Technology, Zibo, China, in 2016. He is currently pursuing the Ph.D. degree with Harbin Institute of Technology, Weihai, China.
He is currently interested in optical fiber sensors.View more
Author image of Yi Liu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yi Liu received the B.S., M.S., and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2009, 2011, and 2014.
He is a Lecturer with Harbin Institute of Technology. He is currently interested in optical fiber sensors.
Yi Liu received the B.S., M.S., and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2009, 2011, and 2014.
He is a Lecturer with Harbin Institute of Technology. He is currently interested in optical fiber sensors.View more
Author image of Lingling Ran
College of Electrical Engineering, Heilongjiang University, Harbin, China
Lingling Ran received the bachelor’s degree in physics, and the M.S. and Ph.D. degrees in optics from Harbin Normal University, Harbin, China, in 2004, 2006, and 2010, respectively.
She is currently a Professor with the College of Electronics Engineering, Heilongjiang University, Harbin. Her current research interests include optical fiber sensors and fiber micro-fabrication.
Lingling Ran received the bachelor’s degree in physics, and the M.S. and Ph.D. degrees in optics from Harbin Normal University, Harbin, China, in 2004, 2006, and 2010, respectively.
She is currently a Professor with the College of Electronics Engineering, Heilongjiang University, Harbin. Her current research interests include optical fiber sensors and fiber micro-fabrication.View more

Author image of Liangtao Hou
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Liangtao Hou received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2017 and 2020, respectively. He is currently pursuing the Ph.D. degree in physics with Harbin Institute of Technology, Weihai, China.
His current research focuses on fiber-optic sensors.
Liangtao Hou received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2017 and 2020, respectively. He is currently pursuing the Ph.D. degree in physics with Harbin Institute of Technology, Weihai, China.
His current research focuses on fiber-optic sensors.View more
Author image of Yan Li
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yan Li received the M.S. and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2008 and 2012.
He is an Associate Professor with Harbin Institute of Technology. He is currently interested in optical fiber sensors.
Yan Li received the M.S. and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2008 and 2012.
He is an Associate Professor with Harbin Institute of Technology. He is currently interested in optical fiber sensors.View more
Author image of Yiming Fu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yiming Fu received the B.S. degree from Harbin Institute of Technology, Weihai, China, in 2021, where he is currently pursuing the M.S. degree.
He is interested in optical fiber sensors.
Yiming Fu received the B.S. degree from Harbin Institute of Technology, Weihai, China, in 2021, where he is currently pursuing the M.S. degree.
He is interested in optical fiber sensors.View more
Author image of Jiuru Yang
Key laboratory of Electronics Engineering, College of Heilongjiang, Heilongjiang University, Harbin, China
Jiuru Yang received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2001 and 2004, respectively, and the Ph.D. degree in communications engineering from Harbin Institute of Technology, Harbin, in 2008.
He is currently a Professor with the College of Electronics Engineering, Heilongjiang University. His current research interests include optical fiber amplifiers, optical fiber sensors, and optical communication systems.
Jiuru Yang received the B.S. and M.S. degrees in optoelectronics and physics electrics from Heilongjiang University, Harbin, China, in 2001 and 2004, respectively, and the Ph.D. degree in communications engineering from Harbin Institute of Technology, Harbin, in 2008.
He is currently a Professor with the College of Electronics Engineering, Heilongjiang University. His current research interests include optical fiber amplifiers, optical fiber sensors, and optical communication systems.View more
Author image of Weijiang Xu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Weijiang Xu received the M.S. degree from Harbin Institute of Technology, Weihai, China, in 2018, where he is currently pursuing the Ph.D. degree.
He is interested in optical fiber sensors.
Weijiang Xu received the M.S. degree from Harbin Institute of Technology, Weihai, China, in 2018, where he is currently pursuing the Ph.D. degree.
He is interested in optical fiber sensors.View more
Author image of Xiaokang Song
College of Electrical Engineering, Heilongjiang University, Harbin, China
Xiaokang Song received the B.S. degree from the School of Opto-electronic Information Science and Technology, Yantai University, Yantai, China, in 2018. She is currently pursuing the M.S. degree in physics electrics from Heilongjiang University, Harbin, China.
Her research interest is fiber-optic sensors.
Xiaokang Song received the B.S. degree from the School of Opto-electronic Information Science and Technology, Yantai University, Yantai, China, in 2018. She is currently pursuing the M.S. degree in physics electrics from Heilongjiang University, Harbin, China.
Her research interest is fiber-optic sensors.View more
Author image of Jinjian Li
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Jinjian Li received the M.S. degree from Shandong University of Technology, Zibo, China, in 2016. He is currently pursuing the Ph.D. degree with Harbin Institute of Technology, Weihai, China.
He is currently interested in optical fiber sensors.
Jinjian Li received the M.S. degree from Shandong University of Technology, Zibo, China, in 2016. He is currently pursuing the Ph.D. degree with Harbin Institute of Technology, Weihai, China.
He is currently interested in optical fiber sensors.View more
Author image of Yi Liu
Department of Optoelectronics Science, Harbin Institute of Technology, Weihai, China
Yi Liu received the B.S., M.S., and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2009, 2011, and 2014.
He is a Lecturer with Harbin Institute of Technology. He is currently interested in optical fiber sensors.
Yi Liu received the B.S., M.S., and Ph.D. degrees from Harbin Institute of Technology, Weihai, China, in 2009, 2011, and 2014.
He is a Lecturer with Harbin Institute of Technology. He is currently interested in optical fiber sensors.View more
Author image of Lingling Ran
College of Electrical Engineering, Heilongjiang University, Harbin, China
Lingling Ran received the bachelor’s degree in physics, and the M.S. and Ph.D. degrees in optics from Harbin Normal University, Harbin, China, in 2004, 2006, and 2010, respectively.
She is currently a Professor with the College of Electronics Engineering, Heilongjiang University, Harbin. Her current research interests include optical fiber sensors and fiber micro-fabrication.
Lingling Ran received the bachelor’s degree in physics, and the M.S. and Ph.D. degrees in optics from Harbin Normal University, Harbin, China, in 2004, 2006, and 2010, respectively.
She is currently a Professor with the College of Electronics Engineering, Heilongjiang University, Harbin. Her current research interests include optical fiber sensors and fiber micro-fabrication.View more

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