Single-laser 32.5 Tbit/s Nyquist WDM transmission

David Hillerkuss (1); Rene Schmogrow (1); Matthias Meyer (1); Stefan; Wolf (1); Meinert Jordan (1); Philipp Kleinow (1); Nicole Lindenmann (1),; Philipp C. Schindler (1); Argishti Melikyan (1); Xin Yang (2); Shalva; Ben-Ezra (3); Bernd Nebendahl (4); Michael Dreschmann (1); Joachim Meyer (1),; Francesca Parmigiani (2); Periklis Petropoulos (2); Bojan Resan (5); Aandreas; Oehler (5); Kurt Weingarten (5); Lars Altenhain (6); Tobias Ellermeyer (6),; Matthias Moeller (7); Michael Huebner (1); Juergen Becker (1); Christian Koos; (1); Wolfgang Freude (1); Juerg Leuthold (1) ((1) Karlsruhe Institute of; Technology (KIT); (2) Optoelectronics Research Centre - University of; Southampton; (3) Finisar Corporation; (4) Agilent Technologies; (5); Time-Bandwidth Products; (6) Micram Microelectronic GmbH; (7) Department of; Electronics; Circuits - Saarland University)

arXiv:1203.2516·cs.NI·January 28, 2016

Single-laser 32.5 Tbit/s Nyquist WDM transmission

David Hillerkuss (1), Rene Schmogrow (1), Matthias Meyer (1), Stefan, Wolf (1), Meinert Jordan (1), Philipp Kleinow (1), Nicole Lindenmann (1),, Philipp C. Schindler (1), Argishti Melikyan (1), Xin Yang (2), Shalva, Ben-Ezra (3), Bernd Nebendahl (4), Michael Dreschmann (1)

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TL;DR

This paper demonstrates a high-capacity optical communication system achieving 32.5 Tbit/s over 227 km using a single laser source and Nyquist WDM, without dispersion compensation, by employing sinc-shaped pulses and advanced digital signal processing.

Contribution

The work introduces a single-laser, high spectral efficiency Nyquist WDM system with real-time digital signal generation for ultra-high capacity transmission.

Findings

01

Achieved 32.5 Tbit/s over 227 km without dispersion compensation.

02

Used 325 carriers from a single laser with 12.5 GHz spacing.

03

Attained 6.4 bit/s/Hz spectral efficiency.

Abstract

We demonstrate 32.5 Tbit/s 16QAM Nyquist WDM transmission over a total length of 227 km of SMF-28 without optical dispersion compensation. A number of 325 optical carriers are derived from a single laser and encoded with dual-polarization 16QAM data using sinc-shaped Nyquist pulses. As we use no guard bands, the carriers have a spacing of 12.5 GHz equal to the Nyquist bandwidth of the data. We achieve a high net spectral efficiency of 6.4 bit/s/Hz using a software-defined transmitter which generates the electrical modulator drive signals in real-time.

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