An interrogation device capable of monitoring 50 optical fibres each with 14 FBGs was designed based on an imaging spectrograph combined with a C-mount CMOS camera. The wavelength range is 780 nm - 850 nm with dispersion 0.14 nm/pixel.
H. Y. FuH.L. LiuXinyong DongHwa‐Yaw TamP. K. A. WaiChao Lü
D.C.C. NormanD. J. WebbRalf Pechstedt
A.D. KerseyMichael A. DavisT. E. Tsai