Share Email Print
cover

Proceedings Paper

Breaking through the intensity restriction of the asymmetric fiber Bragg grating based Fabry-Perot sensitivity enhancement system
Author(s): Wei Wang; Zhengliang Hu; Peng Jiang; Guangming Li; Yongming Hu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

As one of the main factors of restricting the fiber Bragg grating based Fabry–Perot (FBG-based F-P) sensitivity enhancement system, the intensity will be more and more unbalanced and weakened following the improvement of sensitivity enhancing ability. In this paper, intensity unbalance of the pulse train is analyzed. A secondary wave chopping, amplifying and filtering modified scheme is proposed to solve it. A four centimeters diameter compliant cylinder fiber optic accelerometer is fabricated. An experiment is set to validate the improved system. The phase sensitivity calibration results are consistent with the theory well and truly by phase-generated carrier (PGC) scheme. This system achieves 20 times (26 dB) sensitivity enhancement and 10 dB noise floor improvement at the same time successfully.

Paper Details

Date Published: 21 August 2014
PDF: 7 pages
Proc. SPIE 9285, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing, 92850G (21 August 2014); doi: 10.1117/12.2068502
Show Author Affiliations
Wei Wang, National Univ. of Defense Technology (China)
Zhengliang Hu, National Univ. of Defense Technology (China)
Peng Jiang, National Univ. of Defense Technology (China)
Guangming Li, National Univ. of Defense Technology (China)
Yongming Hu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 9285:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing
Xiangang Luo; Harald Giessen, Editor(s)

© SPIE. Terms of Use
Back to Top