A kind of optical fiber sensor based on the birefringence effect of single-mode optical fiber has been designed to measured supersonic waves,and two types of sensors included spiral type and plane type has been developed.Using these sensors,we have investigated the ultrasonic waves in metal plates with different thickness.It has been indicated that this kind of fiber sensor has a wide frequency response (more than 10 MHz) and a high sensitivity.Therefore it is very useful for detecting and measuring laser produced supersonic waves.The experiments also show that the spiral and plane type sensors were more suitable to the laser supersonic waves induced by point and line sources,respectively.