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Proceedings Paper

Measuring FBG's Bragg wavelength using fiber Fabry-Perot tunable filter
Author(s): Rizhong Li; Junbin Huang; Bo Tang; Hongcan Gu
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Paper Abstract

A method using fiber Fabry-Perot tunable filter to achieve FBG sensor's Bragg wavelength is described. The system has the capability to interrogate large number of DFB sensors, whilst obtaining absolute Bragg wavelength with pm resolution. A demonstration system with 4 strain sensors is presented, which obtains DFB sensor's absolute strain value and achieves sub-microstrain resolution at 300Hz interrogating rate.

Paper Details

Date Published: 3 February 2009
PDF: 4 pages
Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 71570X (3 February 2009); doi: 10.1117/12.806764
Show Author Affiliations
Rizhong Li, Naval Univ. of Engineering (China)
Junbin Huang, Naval Univ. of Engineering (China)
Bo Tang, Naval Univ. of Engineering (China)
Hongcan Gu, Naval Univ. of Engineering (China)


Published in SPIE Proceedings Vol. 7157:
2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications

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