High temperature resistant fiber Bragg grating lasers for sensing applications

2009 ◽  
Author(s):  
Bai-Ou Guan ◽  
Yang Zhang ◽  
Hong-Jun Wang ◽  
Da Chen ◽  
Hwa-Yaw Tam
Keyword(s):  
High Temperature ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Sensing Applications

All-fiber hybrid fiber Bragg grating cavity for multi-parameter sensing applications

2009 ◽  
Author(s):  
D. Paladino ◽  
G. Quero ◽  
A. Iadicicco ◽  
C. Caucheteur ◽  
P. Mégret ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Hybrid Fiber ◽  
Sensing Applications

scholarly journals Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5469
Author(s):  
Xiuxiu Xu ◽  
Mingming Luo ◽  
Jianfei Liu ◽  
Nannan Luan
Keyword(s):  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Field Tests ◽  
Polyimide Film ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Sensing Applications ◽  
Fluorinated Polyimide ◽  
Temperature And Humidity ◽  
Fluoride Doping

We propose and demonstrate a temperature and humidity sensor based on a fluorinated polyimide film and fiber Bragg grating. Moisture-induced film expansion or contraction causes an extra strain, which is transferred to the fiber Bragg grating and leads to a humidity-dependent wavelength shift. The hydrophobic fluoride doping in the polyimide film helps to restrain its humidity hysteresis and provides a short moisture breathing time less than 2 min. Additionally, another cascaded fiber Bragg grating is used to exclude its thermal crosstalk, with a temperature accuracy of ±0.5 °C. Experimental monitoring over 9000 min revealed a considerable humidity accuracy better than ±3% relative humidity, due to the sensitized separate film-grating structure. The passive and electromagnetic immune sensor proved itself in field tests and could have sensing applications in the electro-sensitive storage of fuel, explosives, and chemicals.

Fiber laser based on a fiber Bragg grating and its application in high-temperature sensing

2019 ◽  
Vol 452 ◽  
pp. 233-237 ◽  
Author(s):  
Fengqin Huang ◽  
Tao Chen ◽  
Jinhai Si ◽  
Xuantung Pham ◽  
Xun Hou
Keyword(s):  
High Temperature ◽  
Fiber Laser ◽  
Fiber Bragg Grating ◽  
Temperature Sensing ◽  
Bragg Grating

Fiber-Bragg-Grating Based Single Axial Mode Fabry-Perot Interferometer and Its Strain and Acceleration Sensing Applications

2016 ◽  
Vol 34 (9) ◽  
pp. 2241-2250 ◽  
Author(s):  
Toshihiko Yoshino ◽  
Yasukazu Sano ◽  
Daisuke Ota ◽  
Keiichi Fujita ◽  
Takahiro Ikui
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Axial Mode ◽  
Sensing Applications ◽  
Fabry Perot

Acoustic Fiber Bragg Grating and Its Application in High Temperature Sensing

2018 ◽  
Vol 18 (23) ◽  
pp. 9576-9583 ◽  
Author(s):  
Di Hu ◽  
Haifeng Xuan ◽  
Zhihao Yu ◽  
Dorothy Y. Wang ◽  
Bo Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Fiber Bragg Grating ◽  
Temperature Sensing ◽  
Bragg Grating
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