Low-Frequency Vibration Measurement by a Dual-Frequency DBR Fiber Laser  

作　　者：Bing ZHANG Linghao CHENG Yizhi LIANG Long JIN Tuan GUO Bai-Ou GUAN 

机构地区：[1]Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou, 510632, China

出　　处：《Photonic Sensors》2017年第3期206-210,共5页光子传感器（英文版）

基　　金：Acknowledgment This work was supported by the National Natural Science Foundation of China （Grant Nos. 11474133 and 61235005）, Natural Science Foundation of Guangdong Province of China （No. 2014A030310419）, and the Guangzhou Key Collaborative Innovation Foundation of China （No.

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.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.

关 键 词：Fiber laser sensors Doppler effect vibration measurement 

分 类 号：TN248[电子电信—物理电子学] O329[理学—一般力学与力学基础]