期刊
IEEE ACCESS
卷 9, 期 -, 页码 114428-114434出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3105334
关键词
Optical fiber sensors; Rayleigh enhanced optical fiber; vibration sensing
This paper presents a phase-sensitive optical time domain reflectometry (8-OTDR) based on Rayleigh enhanced optical fiber to enhance the system signal-to-noise ratio. Experimental results show a 14 dB improvement in the measured SNRs of peaks at the end of the specialty sensing fiber. A wide range of vibration frequencies from 50 Hz to 15 kHz have been experimentally demonstrated, overcoming the limitations of conventional 8-OTDR systems and significantly enhancing vibration sensing performance.
In this paper, a phase-sensitive optical time domain reflectometry (8-OTDR) based on Rayleigh enhanced optical fiber is proposed to improve the system signal-to-noise ratio (SNR). In the experiment, the vibration performance of the Rayleigh enhanced optical fiber is analyzed and compared with standard single-mode telecom fiber. The results demonstrate that the measured SNRs of peaks in frequency spectra have been improved by 14 dB (at 1 kHz vibration frequency) at the end of the 2 km specialty sensing fiber. A wide range of vibration frequencies from 50 Hz to 15 kHz are demonstrated experimentally. The proposed method overcomes the inherent limitations of the conventional 8-OTDR system and significantly enhances the vibration sensing performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据