Three-layer-structure polymer optical fiber with a rough inter-layer surface as a highly sensitive evanescent wave sensor

2018 ◽  
Vol 254 ◽  
pp. 133-142 ◽  
Author(s):  
Nianbing Zhong ◽  
Zhengkun Wang ◽  
Ming Chen ◽  
Xin Xin ◽  
Ruohua Wu ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Layer Structure ◽  
Layer Surface ◽  
Polymer Optical Fiber ◽  
Highly Sensitive

Plastic Optical Fiber Sensor for Detection of Ethanol Concentrations

2020 ◽  
Vol 307 ◽  
pp. 84-89
Author(s):  
Aisyah Hanim Surani ◽  
Affa Rozana Abdul Rashid ◽  
N. Arsad ◽  
Amna Afiqah Nasution Hakim
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Optical Fiber Sensor ◽  
High Sensitivity ◽  
Deionized Water ◽  
Plastic Optical Fiber ◽  
Polymer Optical Fiber ◽  
Ethanol Sensor ◽  
Output Ratio ◽  
Higher Sensitivity

An optimized study of tapered polymer optical fiber (POF) for measurement of different concentration of ethanol in deionized water (0.5%-3.5%) is proposed and demonstrated. This sensor operated based on evanescent wave absorption principle. The cladding of PMMA based POF is removed using organic solvents which can be used to create tapered POF. The unclad length around 1 cm and 3 cm as well as the waist diameters of POF in the range of 5 mm and 8 mm were compared for their efficiency as an ethanol sensor based on power output ratio values. Tapered POF with smaller waist diameter and longer tapered length showed higher sensitivity as ethanol sensor. Therefore, by tailoring the length and tapered diameter of POF, high sensitivity of ethanol sensor can be fabricated.

Flexible porphyrin doped polymer optical fibers for rapid and remote detection of trace DNT vapor

The Analyst ◽  
2020 ◽  
Vol 145 (15) ◽  
pp. 5307-5313
Author(s):  
Huan Lin ◽  
Xin Cheng ◽  
Ming-Jie Yin ◽  
Zhouzhou Bao ◽  
Xunbin Wei ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Remote Detection ◽  
Polymer Optical Fiber ◽  
Highly Sensitive ◽  
Polymer Optical Fibers ◽  
Doped Polymer

A flexible porphyrin doped polymer optical fiber was developed for fast and highly sensitive monitoring of DNT vapors.

scholarly journals Highly Sensitive Extrinsic X-Ray Polymer Optical Fiber Sensors Based on Fiber Tip Modification

2017 ◽  
Vol 17 (16) ◽  
pp. 5112-5117 ◽  
Author(s):  
Ana I. de Andres ◽  
Sinead O'Keeffe ◽  
Lingxia Chen ◽  
Oscar Esteban
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensors ◽  
Polymer Optical Fiber ◽  
Fiber Sensors ◽  
X Ray ◽  
Highly Sensitive

scholarly journals Temperature insensitive hysteresis free highly sensitive polymer optical fiber Bragg grating humidity sensor

2016 ◽  
Vol 24 (2) ◽  
pp. 1206 ◽  
Author(s):  
Getinet Woyessa ◽  
Kristian Nielsen ◽  
Alessio Stefani ◽  
Christos Markos ◽  
Ole Bang
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Bragg Grating ◽  
Polymer Optical Fiber ◽  
Highly Sensitive ◽  
Optical Fiber Bragg Grating

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 Polymer Optical Fiber Splitter Using Tapered Techniques for Green Technology

2021 ◽  
Author(s):  
Latifah Sarah Supian ◽  
Mohd Syuhaimi Ab-Rahman ◽  
Norhana Arsad ◽  
Hadi Guna ◽  
Khadijah Ismail ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Coupling Efficiency ◽  
Green Technology ◽  
Couple Mode ◽  
Polymer Optical Fiber ◽  
Coupling Region ◽  
Communication Devices ◽  
User Friendly ◽  
Current Device

Polymer Optical Fiber is opted as the most suitable medium for short haul communication system since it has lower cost and low loss for limited distance of transmission compared to glass fiber. This topic aims to show an alternative, green-technology based, economic and user-oriented communication passive device specifically a directional coupler by lapping tapered-fibers technique. This developed device is using designed geometrical blocks with integration of tapering effect, Dc, macro-bending, Rc, force exertion unto the coupling region, Fc, and etching lengths of the cores, Le to gain different splitting ratios, i.e., 50:50 and 90:10 experimentally by using the designed geometrical blocks with varied bending radii that affects the radiation of evanescent wave and to relate the integration of Couple Mode Theory and Hertz’s Law to obtain optimum coupling efficiency. The development may be an option to current device that are less user-friendly and fragile. This device is developed as a green technology-based device as an option for higher speed communication devices since the materials using in the development is safe, harmless, and inexpensive.

scholarly journals Highly sensitive surface plasmon resonance biosensor based on a low-index polymer optical fiber

2018 ◽  
Vol 26 (4) ◽  
pp. 3988 ◽  
Author(s):  
Shaoqing Cao ◽  
Yu Shao ◽  
Ying Wang ◽  
Tiesheng Wu ◽  
Longfei Zhang ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Optical Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Polymer Optical Fiber ◽  
Surface Plasmon Resonance Biosensor ◽  
Highly Sensitive

scholarly journals Temperature-independent polymer optical fiber evanescent wave sensor

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Nianbing Zhong ◽  
Qiang Liao ◽  
Xun Zhu ◽  
Mingfu Zhao ◽  
Yun Huang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Evanescent Wave ◽  
Polymer Optical Fiber
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