CC-OTDR Sequence Shaping Enabling Joint Co-directional Sensing and Communication

TL;DR

This paper introduces CC-OTDR signal envelope shaping to mitigate non-linear effects, enabling simultaneous high-speed data transmission and acoustic sensing over long fiber links.

Contribution

It presents a novel CC-OTDR sequence shaping technique that allows joint co-directional sensing and communication with minimal interference.

Findings

Successful demonstration of 200 Gbps data transmission over 50 km

Effective reduction of non-linear signal interactions

Concurrent acoustic sensing and high-speed data transfer

Abstract

CC-OTDR signal envelope shaping is introduced to reduce the impact of non-linear signal interactions on a neighboring wavelength data channel when co-propagating the probing signal with the data signal. Joint co-directional acoustic sensing and 200 Gbps transmission are demonstrated over a 50 km link.