DAS over 1,007-km Hybrid Link with 10-Tb/s DP-16QAM Co-propagation using Frequency-Diverse Chirped Pulses

Abstract

We report the first distributed acoustic sensing (DAS) results over &gt;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.

Topics & Concepts