Nokia Bell Labs demos real-time trans-oceanic fiber sensing over 4400 km subsea cable via RDMA
jwt0625 · x · 2026-11-16
Commenting on a Nokia Bell Labs-led paper demonstrating real-time network-integrated bidirectional fiber sensing over a 4400-km subsea cable: two OFDR instruments stream and fuse via RDMA over a live 130Gbaud coherent transoceanic link, with edge GPUs capturing spatial resolutions from 10m to 100m. The author notes the sensing industry lags in orchestrating sensor clusters, and hopes coherent-lite optics reach datacenters so DAS can work inside them.
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