400-Gb/s PDM-4PAM WDM System Using a Monolithic 2×4 VCSEL Array and Coherent Detection

We generate a 400-Gb/s line rate signal using a directly modulated 2 × 4 monolithic vertical-cavity-surface-emitting-laser array. The signal consists of four wavelength-division-multiplexed channels at a 100-GHz channel spacing and each channel carries a 100-Gb/s polarization-division-multiplexed fo...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-02, Vol.33 (3), p.670-677
Main Authors: Chongjin Xie, Spiga, Silvia, Po Dong, Winzer, Peter, Bergmann, Michael, Kögel, Benjamin, Neumeyr, Christian, Amann, Markus-Christian
Format: Article
Language:English
Subjects:
Arrays
Coherence
coherent detection
Optical communications
Optical modulation
Optical polarization
pulse-amplitude modulation
VCSLEs
Vertical cavity surface emitting lasers
Wavelength division multiplexing
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Summary:We generate a 400-Gb/s line rate signal using a directly modulated 2 × 4 monolithic vertical-cavity-surface-emitting-laser array. The signal consists of four wavelength-division-multiplexed channels at a 100-GHz channel spacing and each channel carries a 100-Gb/s polarization-division-multiplexed four-level pulse-amplitude-modulation signal. Using digital coherent detection, we successfully transmit the 400-Gb/s signal over 5 × 80-km standard-single-mode-fiber spans with erbium-doped fiber amplifiers at 20% overhead soft-decision forward-error correction, achieving a net information bit rate of 333 Gb/s.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2014.2363017