150 km Single-Span Distributed Vibration Sensor Based on Compensated Self-Interference Forward Transmission

Rao, Xing; Wang, Yuhang; Chen, Ming; Liu, Kuan; Chen, George Y.; Wang, Yiping

doi:10.1109/jlt.2024.3397782

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Other1

Article1

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Delayed Self-Heterodyne Interferometry Enabling 4.8 Tb/s Coherent Transmission and Simultaneous Vibration Sensing with 100 kHz Linewidth ECLs

Hao,

Yue,

et al. 2024

2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Commu

View full text Add to dashboard Cite

Delayed Self-Heterodyne Interferometry Enabling 4.8 Tb/s Coherent Transmission and Simultaneous Vibration Sensing with 100 kHz Linewidth ECLs

Hao,

Yue,

et al. 2024

2024 Asia Communications and Photonics Conference (ACP) and International Conference on Information Photonics and Optical Commu

View full text Add to dashboard Cite

Multi-point vibration positioning method for long-distance forward transmission distributed vibration sensing

Rao,

Dai,

Chen

et al. 2024

Opt. Express

View full text Add to dashboard Cite

Observation of intensity, phase, or polarization properties of light propagating through telecom submarine cables can enable widespread monitoring of geological and undersea events, such as earthquakes, tsunamis, and shipping lane traffic. We conducted a comparative analysis of external physical perturbations acting on submarine optical cables and unprotected optical fibers; introduced both intensity and phase demodulation-based sensing systems for long-distance vibration sensing; presented an extension to the phase-spectrum time delay method for forward-transmission distributed sensing (same as optical communications) to distinguish and quantify multiple simultaneous vibration events; and overcame the previous spatial resolution fundamental lower limit set by the time-domain sampling rate. We experimentally demonstrated multi-vibration positioning over 202.3 km single-span sensing distance, with a positioning accuracy as small as 17.9 m for sinewave vibrations, and a spatial resolution of 1.25 m. Other key sensor parameters include phase sensitivity of 40.6 mrad/µε @ 80 Hz, a corresponding limit of detection (LoD) of 101.7 pε/Hz1/2, intensity sensitivity of 7.1%/µε @ 80 Hz, and a corresponding LoD of 20.1 pε/Hz1/2. The tested frequency range was 0.01-100 Hz. No signal averaging was performed during signal processing to allow faster real-time processing, which would otherwise further improve the results. This forward transmission approach has the potential to upgrade the existing submerged global internet fiber-optic network into a vast ocean-spanning observation network while allowing telecom operations to operate normally without sacrificing bandwidth.

show abstract

150 km Single-Span Distributed Vibration Sensor Based on Compensated Self-Interference Forward Transmission

Cited by 2 publications

References 17 publications

Delayed Self-Heterodyne Interferometry Enabling 4.8 Tb/s Coherent Transmission and Simultaneous Vibration Sensing with 100 kHz Linewidth ECLs

Delayed Self-Heterodyne Interferometry Enabling 4.8 Tb/s Coherent Transmission and Simultaneous Vibration Sensing with 100 kHz Linewidth ECLs

Multi-point vibration positioning method for long-distance forward transmission distributed vibration sensing

Contact Info

Product

Resources

About