[1] [1] LEE B.Review of the present status of optical fiber sensors[J].Optical Fiber Technology,2003,9:57-79.

[5] [5] DAVIS M A,KERSEY A D.All-fibre Bragg grating strainsensor demodulation technique using a wavelength division coupler[J].Electron Lett,1994,30(1):75-77.

[6] [6] VOHRA ST,TODD M D,JOHNSON G A,et al.Fiber bragg grating sensor system for civil structure monitoring:applications and field tests.Proceedings of the 13th International Conference on Optical Fiber Sensors[C].SPIE,1999,3746:32-37.

[7] [7] LIU Y Q,MARK F K.Transient gain control in EDFA's by dual-cavity optical automatic gain control[J].IEEE Photon Technol Lett,1999,11(11):1381-1383.

[8] [8] ALEXANDER G S,ZHOU K M,ZHANG L,et al.Optical sensor interrogation with a blazed fiber bragg grating and a charge-coupled device linear array[J].Applied Optics,2004,43(1):33-40.

[9] [9] TOVKACH E F.Method of measuring linear displacements and twist angle by means of a linear array of photodetectors[J].Opt Technol.2005,72(4):332-337.