LIU Fen,WU Bao-jian,LU Xin.Coupled-mode theory for magneto-optical fiber Bragg grating under non-uniform magnetic field[J].Optoelectronics Letters,2011,7(5):354-357 Coupled-mode theory for magneto-optical fiber Bragg grating under non-uniform magnetic field Author Name Affiliation LIU Fen  Key Lab. of Broadband Optical Fiber Transmission and Communication Networks of Education Ministry of China, University of Electronic Science and Technology of China；  WU Bao-jian  Key Lab. of Broadband Optical Fiber Transmission and Communication Networks of Education Ministry of China, University of Electronic Science and Technology of China；  LU Xin  Key Lab. of Broadband Optical Fiber Transmission and Communication Networks of Education Ministry of China, University of Electronic Science and Technology of China；  Abstract:       According to the perturbation theory, the coupled-mode equations for guided optical waves in the magneto-optical fiber Bragg gratings (MFBGs) under non-uniform magnetic field are derived. The equivalent relation between the magneticallyinduced non-uniform fiber Bragg grating (MnFBG) and the corresponding non-magnetic chirped grating is expressed and verified by the piecewise-uniform MFBG model under linear magnetic field. On the basis of the equivalent relation, the MnFBGs can be effectively inv... Hits: 3917 Download times: 196 View Full Text    Download reader