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

Bing ZHANG; Linghao CHENG; Yizhi LIANG; Long JIN; Tuan GUO; Bai-Ou GUAN

doi:10.1007/s13320-017-0402-8

Journals >Photonic Sensors >Volume 7 >Issue 3 >Page 206 > Article

Photonic Sensors
Vol. 7, Issue 3, 206 (2017)

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

Bing ZHANG, Linghao CHENG^*, Yizhi LIANG, Long JIN, Tuan GUO, and Bai-Ou GUAN

Author Affiliations

Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou, 510632, China

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DOI: 10.1007/s13320-017-0402-8 Cite this Article

Bing ZHANG, Linghao CHENG, Yizhi LIANG, Long JIN, Tuan GUO, Bai-Ou GUAN. Low-Frequency Vibration Measurement by a Dual-Frequency DBR Fiber Laser[J]. Photonic Sensors, 2017, 7(3): 206 Copy Citation Text

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Abstract

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.

Keywords

Doppler effect Fiber laser sensors vibration measurement

Bing ZHANG, Linghao CHENG, Yizhi LIANG, Long JIN, Tuan GUO, Bai-Ou GUAN. Low-Frequency Vibration Measurement by a Dual-Frequency DBR Fiber Laser[J]. Photonic Sensors, 2017, 7(3): 206

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