The Circular Birefringence-Insensitive FBG Sensor for Weak Pressure

DOI: 10.4236/jcc.2013.17003   PDF   HTML     3,018 Downloads   4,669 Views  


The influence of the circular birefringence on the measurement performance was analyzed based on the Polarization Properties of FBG in this paper. Due to the circular birefringence, the linear relationship between the max of PDL and pressure has been broken down. To estimate the cross sensitivity, a new parameter named relative peak of PDL (RPPDL) is proposed. Under different circular birefringence, the same pressure sensitivity of sensor has been achieved. The theo- retical analysis and experiment results prove that transverse strain sensor of FBG is insensitive to the circular birefrin- gence by applying the RPPDL. This research can be provided to useful and practical application.

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Peng, H. , Zhou, B. , Shi, L. and Gao, C. (2013) The Circular Birefringence-Insensitive FBG Sensor for Weak Pressure. Journal of Computer and Communications, 1, 9-13. doi: 10.4236/jcc.2013.17003.

Conflicts of Interest

The authors declare no conflicts of interest.


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