Time-division-multiplexing with CCD demodulation for a serial fiber Bragg grating strain sensor array

摘要

A TDM FBG sensor system with CCD detection was presented for a serial FBG array. Four FBGs were multiplexed and a device based on NOLM technique was adopted for the separation of the pulses. Computer simulation shows that the system provides high sensitivity which is the main factor for a practical FBG sensor.