scholarly journals Miniature photonic crystal optical fiber humidity sensor based on polyvinyl alcohol

2012 ◽  
Author(s):  
Wei Chang Wong ◽  
Chi Chiu Chan ◽  
Tao Li ◽  
Li Han Chen ◽  
Jia Liang Boo ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Polyvinyl Alcohol ◽  
Optical Fiber ◽  
Humidity Sensor

Optical fiber relative-humidity sensor with polyvinyl alcohol film

2004 ◽  
Vol 43 (21) ◽  
pp. 4127 ◽  
Author(s):  
Ainhoa Gastón ◽  
Fátima Pérez ◽  
Joaquín Sevilla
Keyword(s):  
Relative Humidity ◽  
Polyvinyl Alcohol ◽  
Optical Fiber ◽  
Humidity Sensor ◽  
Polyvinyl Alcohol Film ◽  
Relative Humidity Sensor

High-performance humidity sensor based on a polyvinyl alcohol-coated photonic crystal cavity

2016 ◽  
Vol 41 (23) ◽  
pp. 5515 ◽  
Author(s):  
Chenyang Zhao ◽  
Qingchen Yuan ◽  
Liang Fang ◽  
Xuetao Gan ◽  
Jianlin Zhao
Keyword(s):  
Photonic Crystal ◽  
Polyvinyl Alcohol ◽  
High Performance ◽  
Humidity Sensor ◽  
Photonic Crystal Cavity

scholarly journals Highly Sensitive Surface Plasmon Resonance Humidity Sensor Based on a Polyvinyl-Alcohol-Coated Polymer Optical Fiber

Biosensors ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 461
Author(s):  
Ying Wang ◽  
Jingru Wang ◽  
Yu Shao ◽  
Changrui Liao ◽  
Yiping Wang
Keyword(s):  
Surface Plasmon Resonance ◽  
Polyvinyl Alcohol ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Humidity Sensor ◽  
Wavelength Shift ◽  
Polymer Optical Fiber ◽  
Human Breath ◽  
Highly Sensitive

A surface-plasmon-resonance-based fiber device is proposed for highly sensitive relative humidity (RH) sensing and human breath monitoring. The device is fabricated by using a polyvinyl alcohol (PVA) film and gold coating on the flat surface of a side-polished polymer optical fiber. The thickness and refractive index of the PVA coating are sensitive to environmental humidity, and thus the resonant wavelength of the proposed device exhibits a redshift as the RH increases. Experimental results demonstrate an average sensitivity of 4.98 nm/RH% across an ambient RH ranging from 40% to 90%. In particular, the sensor exhibits a linear response between 75% and 90% RH, with a sensitivity of 10.15 nm/RH%. The device is suitable for human breath tests and shows an average wavelength shift of up to 228.20 nm, which is 10 times larger than that of a silica-fiber-based humidity sensor. The corresponding response and recovery times are determined to be 0.44 s and 0.86 s, respectively. The proposed sensor has significant potential for a variety of practical applications, such as intensive care and human health analysis.

scholarly journals Optical Fiber Fabry–Perot Humidity Sensor Filled with Polyvinyl Alcohol

2021 ◽  
Vol 33 (3) ◽  
pp. 1051
Author(s):  
Ning Wang ◽  
Haosheng Zhang ◽  
Xiaodan Yu ◽  
Xiaolei Yin ◽  
Yuhao Li ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Optical Fiber ◽  
Humidity Sensor ◽  
Fabry Perot

Polyvinyl alcohol coated photonic crystal optical fiber sensor for humidity measurement

2012 ◽  
Vol 174 ◽  
pp. 563-569 ◽  
Author(s):  
Wei Chang Wong ◽  
Chi Chiu Chan ◽  
Li Han Chen ◽  
Tao Li ◽  
Kok Xian Lee ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Polyvinyl Alcohol ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Humidity Measurement
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