The principles of Fabry-Perot(F-P) optical fiber accelerometer were presented.The dynamic model of second-order single degree of freedom system for F-P optical fiber accelerometers was analyzed and the frequency response was given.A corresponding scheme of vector hydrophone array with F-P optical fiber accelerometers was demonstrated and its structure was designed.Based on the analysis of demodulation algorithm for hydrophone optical output,the design using double probes to receive the reciprocal output of ...