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Proceedings Paper

Multidimensional modulation formats for coherent optical communications
Author(s): Tobias A. Eriksson; Erik Agrell; Magnus Karlsson
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Paper Abstract

Coherent optical communication systems applying modulation formats with a dimensionality of four or higher are 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.

Paper Details

Date Published: 13 February 2016
PDF: 9 pages
Proc. SPIE 9774, Next-Generation Optical Communication: Components, Sub-Systems, and Systems V, 977403 (13 February 2016); doi: 10.1117/12.2210827
Show Author Affiliations
Tobias A. Eriksson, Chalmers Univ. of Technology (Sweden)
Erik Agrell, Chalmers Univ. of Technology (Sweden)
Magnus Karlsson, Chalmers Univ. of Technology (Sweden)

Published in SPIE Proceedings Vol. 9774:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems V
Guifang Li; Xiang Zhou, Editor(s)

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