Simultaneous measurement of strain and temperature based on a long-period grating with a polarization maintaining fiber in a loop mirror

2014 ◽  
Vol 20 (1) ◽  
pp. 44-47 ◽  
Author(s):  
Jinlei Chu ◽  
Changyu Shen ◽  
Feng Qian ◽  
Chuan Zhong ◽  
Xin Zou ◽  
...  
Keyword(s):  
Simultaneous Measurement ◽  
Long Period Grating ◽  
Long Period ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Loop Mirror

Research of Simultaneous Measurement of Temperature and Strain of Fiber Optic Cable Material

2012 ◽  
Vol 507 ◽  
pp. 30-33
Author(s):  
Xue Jun Zhang ◽  
Hong Tao Guo
Keyword(s):  
Simultaneous Measurement ◽  
Fiber Optic ◽  
Fiber Grating ◽  
Mean Square ◽  
Fiber Optic Cable ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Period Fiber Grating

Simultaneous measurement of strain and temperature was demonstrated by using a long-period fiber grating inscribed on a polarization-maintaining fiber. This paper analyses the intersect senstive questions in terms of strain and temperature of fiber optic cable material. It also proposes a new way to carry out simultaneous measurements of strain and temperature. Experimental results show mean square deviations of 15.6 με and 0.7°C for strain and temperature, respectively.

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