Research and application of FP and MZ fiber Bragg grating demodulation technique

FP scan method amalgamated non-balance M-Z method is advanced. The GC with FP standard cavity is used in wavelength demarcation technique, and the yawp of photoelectricity detection of demodulation system is controlled strictly, so the requirements of high precision demodulation are realized. The system's power loss is calculated and distributed logically. It is indicated by experimentation that this method can realize the detection of multi-dots of temperature and static strain signal, and it also realize the real-time detection of dynamic parameter equipment system, so the proposed method has the merits of both FP scan method and non-balance M-Z method.