中文摘要：

双频率的分布式的布拉格反射镜(DBR ) 纤维激光基于传感器通过 Doppler 效果为低频率的颤动测量被表明。建议传感器的反应是相当线性的并且比一张常规加速表的高得多。建议传感器能工作在下面到有高敏感的 1 Hz。因此，建议传感器在低频率的颤动测量是很有效的。

英文摘要：

A dual-frequency distributed Bragg reflector （DBR） fiber laser based sensor is demonstrated for low-frequency vibration measurement through the Doppler effect. The response of the proposed sensor is quite linear and is much higher than that of a conventional accelerometer. The proposed sensor can work down to 1 Hz with high sensitivity. Therefore, the proposed sensor is very efficient in low-frequency vibration measurement.