TLSD is a Fiber Bragg Grating demodulator by scanning spectrum. It uses a scanning narrow-band semiconductor laser as light source to perform high-resolution fiber grating demodulation in the range of 40nm. It is designed for static FBG measurement and can be used for real-time online monitoring of temperature, stress, strain and displacement. The PLC splitter is used to cost efficiently expand the channel and to enable the synchronous acquisition. The demodulator has high reliability and temperature stability due to the absence of any moving parts.
