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arXiv · 2103.03354

Optical data transmission field trial @ 44Tb/s with a 49GHz Kerr soliton crystal microcomb

Mengxi Tan·Xingyuan Xu·David J. Moss
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Abstract

We report world record high data transmission over standard optical fiber from a single optical source. We achieve a line rate of 44.2 Terabits per second (Tb/s) employing only the C-band at 1550nm, resulting in a spectral efficiency of 10.4 bits/s/Hz. We use a new and powerful class of micro-comb called soliton crystals that exhibit robust operation and stable generation as well as a high intrinsic efficiency that, together with an extremely low spacing of 48.9 GHz enables a very high coherent data modulation format of 64 QAM. We achieve error free transmission across 75 km of standard optical fiber in the lab and over a field trial with a metropolitan optical fiber network. This work demonstrates the ability of optical micro-combs to exceed other approaches in performance for the most demanding practical optical communications applications.

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Mengxi Tan, Xingyuan Xu, David J. Moss. 2021-01-29. Optical data transmission field trial @ 44Tb/s with a 49GHz Kerr soliton crystal microcomb. https://doi.org/10.23919/mwp48676.2020.9314476

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