Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31937
Title: A high-frequency accelerometer based on distributed bragg reflector fiber laser
Authors: Yu, K
Lai, CC
Wu, C
Zhao, Y
Lu, C 
Tam, HY 
Keywords: Accelerometer
DBR laser
Fiber optics sensors
Vibration measurements
Issue Date: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: IEEE Photonics technology letters, 2014, v. 26, no. 14, 6824791, p. 1418-1421 How to cite?
Journal: IEEE Photonics Technology Letters 
Abstract: We propose an optical accelerometer based on distributed Bragg reflector (DBR) fiber laser sensor. The transducer's vibration reduces the birefringence of the preloaded fiber laser and consequently changes the beat frequency of the two orthogonally polarized lasing modes, thus the frequency can be used to retrieve the acceleration information. The DBR probe is a segment of bare erbium fiber, which has a very high natural frequency of vibration. Experimental results show that sensitivity of 4.810 MHz/g with a dynamic range of 0.01g-5g (where g = 9.8 m/s2 is the gravity of the earth) and natural frequency of ∼ 1.3 kHz can be obtained with this sensing system.
URI: http://hdl.handle.net/10397/31937
ISSN: 1041-1135
DOI: 10.1109/LPT.2014.2326558
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