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Multidimensional modulation formats for coherent optical communications

Tobias Eriksson (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Erik Agrell (Institutionen för signaler och system) ; Magnus Karlsson (Institutionen för mikroteknologi och nanovetenskap, Fotonik)
Conference on Next-Generation Optical Communication - Components, Sub-Systems, and Systems V, San Francisco, CA, Feb 16-18, 2016 (0277-786X). 977403, (2016)
[Konferensbidrag, övrigt]

Coherent optical communication systems applying modulation formats with a dimensionality of four or higherare investigated and compared to systems using conventional formats. Higher dimensionality can be achieved by applying modulation over more than one polarization, time-slot, wavelength, mode or core. Both uncoded systems and systems applying forward-error correction (FEC) coding are studied in terms of spectral efficiency and sensitivity. It is shown that increasing the dimensionality for a constant spectral efficiency improves the sensitivity substantially if no coding is applied, whereas the corresponding gains generally are much smaller in FEC-coded systems.

Nyckelord: Modulation formats, multidimensional modulation formats, asymptotic power efficiency, power efficiency, coherent optical communication systems



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Denna post skapades 2016-04-21. Senast ändrad 2016-11-08.
CPL Pubid: 234967

 

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