[1] [1] Volanthen M, Geiger H, Cole M J et al.. Measurement of arbitrary strain profile within fiber gratings. Electron. Lett., 1996, 23(11): 1028～1029

[2] [2] Kersey A D, Davis M A, Patrick H J et al.. Fiber grating sensors. J. Lightwave Technol., 1997, 15(8):1442～1463

[3] [3] Davis M A, Kersey A D. Matched-filter interrogation technique for fiber Bragg grating arrays. Electron. Lett., 1995, 31(10):822～825

[4] [4] Ohn M M, Huang S Y, Measures R M et al.. Arbitrary strain profile measurement within fiber gratings using interferometric Fourier transform technique. Electron. Lett., 1997, 33(14):1242～1243

[5] [5] Brady G, Kalli K, Webb D J et al.. Simultaneous interrogation of interferometric and Bragg grating sensors. Opt. Lett., 1995, 20(11):1340～1342

[6] [6] Kersey A D, Ribeiro A B L, Morey W W. Fiber optic Bragg grating strain sensor with drift-compensated high-resolution interferometric wavelength shift detection. Opt. Lett., 1993, 18(10):972～974

[7] [7] Bhatia V, Vengsarkar A M. Optical fiber long-period grating sensors. Opt. Lett., 1996, 21(9):692～694

[8] [8] Fallon R W, Zhang L, Everall L A et al.. All-fibre optical sensing system: Bragg grating sensor interrogated by a long-period grating. Meas. Sci. Technol., 1998, 9(12):1969～1973