Temperature sensor based on low-birefringence photonic crystal fiber Sagnac interferometer

2010 ◽  
Author(s):  
Huaping Gong ◽  
Chichiu Chan ◽  
Lihan Chen ◽  
Yongxing Jin ◽  
Xinyong Dong
Photonics ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 33 ◽  
Author(s):  
Yashar E. Monfared ◽  
Amir Ahmadian ◽  
Vigneswaran Dhasarathan ◽  
Chunhao Liang

In this paper, we theoretically designed and numerically studied a high-resolution and ultrasensitive photonic crystal fiber temperature sensor by selective filling of a liquid with high thermo-optic coefficient in one of the airholes of the fiber. The finite element method was utilized to study the propagation characteristics and the modal birefringence of the fiber under different ambient temperatures. A large base birefringence value of 7.7 × 10−4 as well as a large birefringence sensitivity of almost 29% to a 10 °C temperature variation was achieved for the optimized fiber design with liquid chloroform between 15 °C and 35 °C. We also studied the performance of the proposed optical fiber in a temperature sensing Sagnac interferometer. An average linear temperature sensitivity of 17.53 nm/°C with an average resolution of 5.7 × 10−4 °C was achieved over a temperature range of 20 °C (15 °C to 35 °C).


2012 ◽  
Vol 4 (5) ◽  
pp. 1801-1808 ◽  
Author(s):  
Ying Cui ◽  
Perry Ping Shum ◽  
Dora Juan Juan Hu ◽  
Guanghui Wang ◽  
Georges Humbert ◽  
...  

2019 ◽  
Vol 58 (8) ◽  
pp. 2132 ◽  
Author(s):  
Guangyao Wang ◽  
Ying Lu ◽  
Xianchao Yang ◽  
Liangcheng Duan ◽  
Jianquan Yao

2012 ◽  
Vol 39 (11) ◽  
pp. 1114002 ◽  
Author(s):  
伍铁生 Wu Tiesheng ◽  
王丽 Wang Li ◽  
王哲 Wang Zhe ◽  
刘玉敏 Liu Yumin ◽  
胡署阳 Hu Shuyang ◽  
...  

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