100 Gbit/s real-time digital coherent transmission over a 32 km legacy multi-mode graded-index fiber

Toshihiko Hirooka; Masataka Nakazawa; Tetsuro Komukai; Toshikazu Sakano

doi:10.1587/elex.11.20140563

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100 Gbit/s real-time digital coherent transmission over a 32 km legacy multi-mode graded-index fiber

Toshihiko Hirooka, Masataka Nakazawa, Tetsuro Komukai, Toshikazu Sakano

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Keywords: digital coherent transmission, multi-mode fiber, disaster-resilient network

JOURNAL FREE ACCESS

2014 Volume 11 Issue 15 Pages 20140563

DOI https://doi.org/10.1587/elex.11.20140563

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Abstract

We demonstrate a 100 Gbit/s real-time digital coherent transmission over a 32-km multi-mode graded-index fiber (GIF) with a 62.5 µm core diameter by compensating for modal dispersion with a digital signal processing (DSP). The DSP enables channel estimation and configuration as fast as 20 ms. Furthermore, the optical channel can be switched between GIF and a single-mode fiber (SMF) within 30 ms.

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