Temperature and strain sensing characteristics of the tilted fiber Bragg grating

Theoretical and experimental studies on the tilted fiber Bragg grating (TFBG) temperature and strain sensing characteristics are conducted. The TFBG is stuck to the surface of the beam along the axis direction. When the free end of the beam is forced, both the strain and temperature will induce wave...

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Bibliographic Details
Published in:Optoelectronics letters 2010-09, Vol.6 (5), p.355-358
Main Authors: Zhang, Wei-hua, Yang, Bao-he, Tong, Zheng-rong, Miao, Yin-ping, Liu, Bo, Dong, Xiao-yi
Format: Article
Language:English
Subjects:
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
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Summary:Theoretical and experimental studies on the tilted fiber Bragg grating (TFBG) temperature and strain sensing characteristics are conducted. The TFBG is stuck to the surface of the beam along the axis direction. When the free end of the beam is forced, both the strain and temperature will induce wavelength shifts. The temperature characteristic of TFBG cladding modes is similar to that of the core mode while the strain characteristics of TFBG core mode and cladding modes are different. A novel method to discriminate the temperature and strain simultaneously is put forward based on TFBG sensing characteristics.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-010-9030-x