Principles and applications of seismic monitoring based on submarine optical cable

J Yu, P Xu, Z Yu, K Wen, J Yang, Y Wang, Y Qin - Sensors, 2023‏ - mdpi.com
Submarine optical cables, utilized as fiber-optic sensors for seismic monitoring, are gaining
increasing interest because of their advantages of extending the detection coverage …

Magnitude estimation and ground motion prediction to harness fiber optic distributed acoustic sensing for earthquake early warning

I Lior, D Rivet, JP Ampuero, A Sladen, S Barrientos… - Scientific Reports, 2023‏ - nature.com
Earthquake early warning (EEW) systems provide seconds to tens of seconds of warning
time before potentially-damaging ground motions are felt. For optimal warning times, seismic …

Data collection optimization of ocean observation network based on AUV path planning and communication

Z Yan, Y Li - Ocean Engineering, 2023‏ - Elsevier
Abstract The Ocean Observation Network (OON) is an ocean science and engineering
observation platform which integrates underwater wireless sensors, acoustic buoys …

Localization of seismic waves with submarine fiber optics using polarization-only measurements

L Costa, S Varughese, P Mertz, V Kamalov… - Communications …, 2023‏ - nature.com
Monitoring seismic activity on the ocean floor is a critical yet challenging task, largely due to
the difficulties of physical deployment and maintenance of sensors in these remote areas …

[HTML][HTML] A cost-effective distributed acoustic sensor for engineering geology

BG Gorshkov, AE Alekseev, DE Simikin, MA Taranov… - Sensors, 2022‏ - mdpi.com
A simple and cost-effective architecture of a distributed acoustic sensor (DAS) or a phase-
OTDR for engineering geology is proposed. The architecture is based on the dual-pulse …

Review of fibre optic hydrophones for potential application in offshore carbon storage monitoring

M Hadeed, HS Bhatti, AM Aizzuddin, E Vorathin… - Sensors and Actuators A …, 2025‏ - Elsevier
This review paper explores the advancements in fibre optic hydrophones for their potential
application in offshore carbon storage monitoring. As global carbon dioxide (CO 2) …

Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing

FH Yu, S Liu, L Shao, W Xu, D **ao, F Zhao, J Hu… - Optics Letters, 2022‏ - opg.optica.org
Phase-sensitive optical time-domain reflectometry (Φ-OTDR) based on heterodyne
detection is widely used for its simple structure and high signal-to-noise ratio (SNR) …

Effectiveness of fiber optic distributed acoustic sensing (DAS) in vertical seismic profiling (VSP) field survey

MH Mad Zahir, KM Abdul Aziz, AR Ghazali… - Applied Sciences, 2023‏ - mdpi.com
The evolution of fiber optic technology in the past few decades has led to significant
advancements in various fields, including high-speed and long-distance communication, big …

[HTML][HTML] Denoising algorithm of Φ-OTDR signal based on curvelet transform with adaptive threshold

D Li, H Wang, X Wang, X Li, T Huang, M Ge, J Yin… - Optics …, 2023‏ - Elsevier
In this paper, a denoising scheme based on curvelet transform is proposed to improve the
signal-to-noise ratio (SNR) for vibration sensing in phase-sensitive optical time-domain …

[HTML][HTML] Data reduction in phase-sensitive OTDR with ultra-low sampling resolution and undersampling techniques

F Yu, L Shao, S Liu, W Xu, D **ao, H Liu, PP Shum - Sensors, 2022‏ - mdpi.com
Data storage is a problem that cannot be ignored in the long-term monitoring of a phase-
sensitive optical time-domain reflectometry (Φ-OTDR) system. In this paper, we proposed a …