Study on spectrum properties of cascaded fiber Bragg gratings
YAO Hai-feng1,XIN Li1,ZHAO Hai-fa1,SONG Ying-lin1,2(1. Department of Physics,Harbin Institute of Technology,Harbin 150001,China;2. School of Physics Science and Technology,Suzhou University,Suzhou 215006,China)
Based on coupled mode theory,the spectrum properties of two-order and three-order cascaded fiber Bragg gratings as well as paralleled fiber Bragg gratings are analyzed using transfer matrix method. The numerical simulation almost agrees with the experimental results.