Ultra-long-range modulated asymmetric vibration sensor based on high-frequency carrier

Xinxin Hu; Kun Liu; Yuelang Huang; Junfeng Jiang; Zhenyang Ding; Tiegen Liu

doi:10.1117/12.2691732

27 September 2023 Ultra-long-range modulated asymmetric vibration sensor based on high-frequency carrier

Xinxin Hu, Kun Liu, Yuelang Huang, Junfeng Jiang, Zhenyang Ding, Tiegen Liu

Author Affiliations +

Proceedings Volume 12813, Asia-Pacific Optical Sensors Conference (APOS 2023); 128130A (2023) https://doi.org/10.1117/12.2691732
Event: Asia Pacific Optical Sensors Conference 2023, 2023, Tianjin, China

Abstract

We have theoretically and experimentally demonstrated the effectiveness of a modulated asymmetric dual Mach-Zehnder interferometer (ADMZI) system using a high-frequency carrier scheme, which is also applicable to weak signals with low frequencies and small amplitudes. To further extend the sensing distance, we choose an erbium-doped fiber amplifier (EDFA) post-amplification to amplify the interference signal. The experimental results show that the scheme extends the sensing distance to 200 km, and the positioning error is within ±300 m with a standard deviation of 72.2 m. The average positioning time is 195 ms, which can meet the real-time positioning requirements.

Citation Download Citation

Xinxin Hu, Kun Liu, Yuelang Huang, Junfeng Jiang, Zhenyang Ding, and Tiegen Liu "Ultra-long-range modulated asymmetric vibration sensor based on high-frequency carrier", Proc. SPIE 12813, Asia-Pacific Optical Sensors Conference (APOS 2023), 128130A (27 September 2023); https://doi.org/10.1117/12.2691732

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