Referenced Items are not available for this document.
We generate a single-carrier 21.4-Gbaud polarization-division-multiplexed (PDM) 64-ary quadrature-amplitude-modulated (QAM) signal (256.8-Gb/s line rate) using a single in-phase/quadrature (I/Q) optical modulator driven by 8-level electrical waveforms from a novel high-power digital-to-analog converter (DAC). We measure a required optical signal-to-noise ratio of 29.5 dB (0.1-nm reference bandwidth; 10-3 bit-error rate), 4.6-dB off the theoretical limit. Using ultra-large-area fiber, we achieve 400-km single-channel transmission. The DAC was also used to obtain excellent results with quadrature-phase-shift-keyed and 16-QAM signals at 21.4 Gbaud.
Published in:
Lightwave Technology, Journal of
(Volume:30
,
Issue:
4
)
Date of Publication: Feb.15, 2012
- Page(s):
- 532 - 536
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 12487909
- Digital Object Identifier :
- 10.1109/JLT.2011.2175200
- Product Type:
- Journals & Magazines
- Date of Publication :
- 05 December 2011
- Date of Current Version :
- 26 January 2012
- Issue Date :
- Feb.15, 2012
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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