Reconstructing arbitrary strain distributions within fiber gratings by evolutionary programming

Guiling Huang; Qida Zhao; Lihui Liu; Tuan Guo; Qinchang Tu; Shiyu Gao; Lifang Xue

doi:10.1117/12.635988

5 December 2005 Reconstructing arbitrary strain distributions within fiber gratings by evolutionary programming

Guiling Huang, Qida Zhao, Lihui Liu, Tuan Guo, Qinchang Tu, Shiyu Gao, Lifang Xue

Proceedings Volume 6019, Passive Components and Fiber-based Devices II; 60191X (2005) https://doi.org/10.1117/12.635988
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

An innovative algorithm based on the evolutionary programming (EP) method is developed for recovering distributions of axial strain along a fiber grating from its reflection spectral response. The proposed method exhibits a number of attractive features that prove to be effective for solving the inverse problems. The basics of EP are reviewed and the detailed programming procedures of the proposed algorithm are presented. By combining EP and the matrix method for calculating the reflection spectrum of a FBG, we obtain a new method for the distributed sensing. The numerical simulations show good agreements between the original and the reconstructed strain profiles.

Citation Download Citation

Guiling Huang, Qida Zhao, Lihui Liu, Tuan Guo, Qinchang Tu, Shiyu Gao, and Lifang Xue "Reconstructing arbitrary strain distributions within fiber gratings by evolutionary programming", Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60191X (5 December 2005); https://doi.org/10.1117/12.635988

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