Experimental evaluation of prefiltering for 56 Gbaud DP-QPSK signal transmission in 75 GHz WDM grid

Research output: Research - peer-reviewJournal article – Annual report year: 2014

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We investigate optical prefiltering for 56Gbaud (224Gbit/s) electrical time-division multiplexed (ETDM) dual polarization (DP) quaternary phase shift keying (QPSK) transmission. Different transmitter-side optical filter shapes are tested and their bandwidths are varied. Comparison of studied filter shapes shows an advantage of a pre-emphasis filter. Subsequently, we perform a fiber transmission of the 56Gbaud DP QPSK signal filtered with the 65GHz pre-emphasis filter to fit the 75GHz transmission grid. Bit error rate (BER) of the signal remains below forward error correction (FEC) limit after 300km of fiber propagation.
Original languageEnglish
JournalOptical Fiber Technology
Volume20
Issue number1
Pages (from-to)39-43
ISSN1068-5200
DOIs
StatePublished - 2014
CitationsWeb of Science® Times Cited: 0

    Research areas

  • Optical prefiltering, Optical modulation, Quaternary phase shift keying, Coherent detection, Optical transmission, Wavelength division multiplexing
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