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Nonlinearity-aware 200 Gbit/s DMT transmission for C-band short-reach optical interconnects with a single packaged electro-absorption modulated laser
Shanghai Jiao Tong University, China ; KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden ; South China Normal University, China.
RISE - Research Institutes of Sweden, ICT, Acreo. KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, ICT, Acreo.
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2018 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 43, no 2, p. 182-185Article in journal (Refereed) Published
Abstract [en]

We experimentally demonstrate the transmission of a 200 Gbit/s discrete multitone (DMT) at the soft forward error correction limit in an intensity-modulation direct-detection system with a single C-band packaged distributed feedback laser and traveling-wave electro absorption modulator (DFB-TWEAM), digital-to-analog converter and photodiode. The bit-power loaded DMT signal is transmitted over 1.6 km standard single-mode fiber with a net rate of 166.7 Gbit/s, achieving an effective electrical spectrum efficiency of 4.93 bit/s/Hz. Meanwhile, net rates of 174.2 Gbit/s and 179.5 Gbit/s are also demonstrated over 0.8 km SSMF and in an optical back-to-back case, respectively. The feature of the packaged DFB-TWEAM is presented. The nonlinearity-aware digital signal processing algorithm for channel equalization is mathematically described, which improves the signal-to-noise ratio up to 3.5 dB.

Place, publisher, year, edition, pages
2018. Vol. 43, no 2, p. 182-185
Keyword [en]
Digital signal processing, Distributed feedback lasers, Error correction, Optical communication, Optical signal processing, Signal processing, Signal to noise ratio, Single mode fibers, Channel equalization, Digital signal processing algorithms, Discrete multi-tone, Electrical spectra, Electro-absorption modulated laser, Intensity modulation direct detection, Standard single mode fibers, Traveling-wave electro-absorption modulators, Digital to analog conversion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33250DOI: 10.1364/OL.43.000182Scopus ID: 2-s2.0-85040313909OAI: oai:DiVA.org:ri-33250DiVA: diva2:1182215
Note

Funding details: Knut och Alice Wallenbergs Stiftelse; Funding details: NSFC, National Natural Science Foundation of China; Funding details: 2016A030313438, Natural Science Foundation of Guangdong Province; Funding details: SSF, Stiftelsen för Strategisk Forskning; Funding text: Vetenskapsrådet (VR); Stiftelsen för Strategisk Forskning (SSF); Göran Gustafsson Stiftelse; National Natural Science Foundation of China (NSFC); Natural Science Foundation of Guangdong Province (2016A030313438); Knut och Alice Wallenbergs Stiftelse. The authors thank Tektronix and Keysight for the loan of real-time oscilloscope and AWG, respectively.

Available from: 2018-02-12 Created: 2018-02-12 Last updated: 2018-02-12Bibliographically approved

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