6A. Laudati, F. Mennella etal. A fiber-optic Bragg grat- ing seismic sensor. IEEE Photon. Technol. Lett. 19 (24), 2005 : 1991 -1993.
7T.H.T. Chan, L. Yu et al. Fiber Bragg grating sensors for structural health monitoring of Tsing Ma Bridge:background and experimental observation. Eng. Strut. 2006, 28:648-659.