High-accuracy quasi-distributed optical fiber Bragg gratingseismic demodulation system
高精度准分布式光纤光栅地震检波解调系统的研究

A new earthquake detection demodulation system for monitoring several points and several parameters at the same time is proposed by using the linear sideband of super-fluorescent fiber source as an edge filter.The sensitivity of whole demodulation system is determined by the detecting sensitivity of source light.Through the optimization of light,the slope of light linear part is improved greatly.According to the rising and the falling of light,the system is divided into two parts each with four channels.Thr...