Open AccessTemperature and strain sensing property of grapefruit microstructure fiber Bragg grating
Author(s) -
Chunshu Zhang,
Guiyun Kai,
Zhi Wang,
Chao Wang,
Tao Sun,
Weigang Zhang,
Yange Liu,
Jianfei Liu,
Yuan Shu-Zhong,
Dong Xiang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.2758
Subject(s) - materials science , fiber bragg grating , wavelength , grating , optics , strain (injury) , reflection (computer programming) , microstructure , optoelectronics , composite material , physics , medicine , computer science , programming language
The temperature and strain sensing property of a grapefruit microstructure fiber (MF) Bragg grating with multi-reflection peaks have been studied. Analysis indicates that the wavelength shift of this grating changes quadratically with the environmental temperature. Experimental results show that different reflection p eaks have their individual temperature sensitivities. Furthermore, the relations hip between the wavelength shifts and temperature variation has been fitted, whi ch confirms the above analysis. However, theoretical analysis indicates that the wavelength shift have a good linear relationship with the strain change. The re lationship between the wavelength shift and strain changes has been fitted throu gh experiment. The inconsistent sensitivity of different reflection peaks for th is grating ensures its practical applications in the field of multi-parameter se nsing measurement.