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arXiv · 1401.1305

Delivering 10 Gb/s optical data with picosecond timing uncertainty over 75 km distance

N. Sotiropoulos·C. M. Okonkwo·R. Nuijts·H. de Waardt·J. C. J. Koelemeij
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Abstract

We report a method to determine propagation delays of optical 10 Gb/s data traveling through a 75 km long amplified fiber link with an uncertainty of 4 ps. The one-way propagation delay is determined by two-way exchange and cross correlation of short (< 1 ms) bursts of 10 Gb/s data, with a single-shot time resolution better than 2.5 ps. We thus achieve a novel optical communications link suited for both long-haul high-capacity data transfer and time transfer with picosecond-range uncertainty. This opens up the perspective of synchronized optical telecommunication networks allowing picosecond-range time distribution and millimeter-range positioning.

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N. Sotiropoulos, C. M. Okonkwo, R. Nuijts, H. de Waardt, J. C. J. Koelemeij. 2014-01-07. Delivering 10 Gb/s optical data with picosecond timing uncertainty over 75 km distance. https://doi.org/10.1364/oe.21.032643

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