Demodulating the Response of Optical Fibre Long-Period Gratings: Genetic Algorithm Approach
P. S. André1,2, R. A. Sá. Ferreira2,3, C. M. L.Correia2, H. Kalinowshy4, XIN Xiang-Jun5, J. L. Pinto1,2
1Instituto de Telecomunicaccoes, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro, Portugal
2Departamento de Fisica, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro, Portugal
3Centro de Investigaccao em Materiais Compósitos e Cerámicos, CICECO, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro,Portugal
4Centro Federal de Educaccao Tecnológica do Paraná Av. Setede Setembro, 3165, 80230-901 Curitiba-PR, Brasil
5School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
Demodulating the Response of Optical Fibre Long-Period Gratings: Genetic Algorithm Approach
P. S. André1,2;R. A. Sá. Ferreira2,3;C. M. L.Correia2;H. Kalinowshy4;XIN Xiang-Jun5;J. L. Pinto1,2
1Instituto de Telecomunicaccoes, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro, Portugal
2Departamento de Fisica, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro, Portugal
3Centro de Investigaccao em Materiais Compósitos e Cerámicos, CICECO, Universidade de Aveiro, Campus de Santiago 3810-193, Aveiro,Portugal
4Centro Federal de Educaccao Tecnológica do Paraná Av. Setede Setembro, 3165, 80230-901 Curitiba-PR, Brasil
5School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
Abstract： The extraction of the physical parameters of long period gratings from the spectral response is not an easy process. We present a demodulation technique to synthesize the physical parameters of a long period grating recorded in an optical fibre. The demodulation is achieved through the implementation of a genetic algorithm. The extracted parameters are in agreement with the typical values known for long period gratings.
P. S. André;R. A. Sá. Ferreira;C. M. L.Correia;H. Kalinowshy;XIN Xiang-Jun;J. L. Pinto;. Demodulating the Response of Optical Fibre Long-Period Gratings: Genetic Algorithm Approach[J]. 中国物理快报, 2006, 23(9): 2480-2482.
P. S. André, R. A. Sá. Ferreira, C. M. L.Correia, H. Kalinowshy, XIN Xiang-Jun, J. L. Pinto,. Demodulating the Response of Optical Fibre Long-Period Gratings: Genetic Algorithm Approach. Chin. Phys. Lett., 2006, 23(9): 2480-2482.
2006, Vol. 23 
