We experimentally demonstrate an aggregate 86-GBaud (over three sub-bands and one polarization) signal generation based on subcarrier multiplexing technique using IQ mixers, an electrical 90 degree hybrid, and diplexers. The electrical hybrid allows transmitter-side digital signal processing to be simplified to pulse shaping and digital pre-emphasis. We verified the configuration by testing the performance of an 86-GBaud Nyquist-shaped 16 quadrature amplitude modulation signal with differential bit encoding. The implementation penalty assuming 7% hard-decision forward error correction is reduced to 2 dB by utilizing a 31-tap decision-directed least mean square based multiple-input multiple-output equalizer for sideband crosstalk mitigation.
|Number of pages||11|
|Publication status||Published - 12 Apr 2019|
Bibliographical notePublished by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Funding: Engineering and Physical Sciences Research Council projects PEACE (EP/L000091/1), UPON (EP/M005283/1), SPFS (EP/L00044X/1), TOM3 (EP/M009092/1).
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86-GBaud subcarrier multiplexed 16QAM signal generation using an electrical 90 degree hybrid and IQ mixers
Zhang, T. (Creator), Sanchez Costa, C. (Creator), Skvortcov, P. (Creator), Ferreira, F. (Creator), Sygletos, S. (Creator), Phillips, I. (Creator), Forysiak, W. (Creator) & Ellis, A. (Creator), Aston Data Explorer, 17 Apr 2019
DOI: 10.17036/researchdata.aston.ac.uk.00000414, https://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-8-11819