Optical Fiber Communication Conference (OFC) 2022 · 2022 · 14 citations · 6 references
EngineeringOptical Transmission SystemAcoustic SensorSensing (Management Information Systems)Fiber-optic CommunicationField-lab Hybrid LinkAcoustic SensingOcean AcousticsSensing (Sensor Engineering)NoiseAcoustical Engineering10-Tb/s Dp-16qam Co-propagationPulse PowerOptical CommunicationAcoustic Signal ProcessingUnderwater CommunicationInstrumentation1,007-Km Hybrid LinkPhotonicsPhysicsHigh-frequency DeviceAcoustic PropagationSignal ProcessingFrequency-diverse Chirped PulsesApplied PhysicsCorrelation Detection
We report the first distributed acoustic sensing (DAS) results over >1,000 km on a field-lab hybrid link using chirped-pulses with correlation detection and 20× frequency-diversity, achieving a sensitivity of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="eq1" display="inline"> <mml:mrow> <mml:mn>100</mml:mn> <mml:mtext>p</mml:mtext> <mml:mo>∈</mml:mo> <mml:mo>/</mml:mo> <mml:msqrt> <mml:mrow> <mml:mtext>Hz</mml:mtext> </mml:mrow> </mml:msqrt> </mml:mrow> </mml:math> at 20-meters spatial resolution.
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Distributed optical fiber sensing: Review and perspective
Ping Lu, Nageswara Lalam, Mudabbir Badar et al. · Applied Physics Reviews · 2019 · 762 citations · Full text