Impact of in-band crosstalk due to mixed modulation formats with multiple line rates on direct-detection OFDM optical networks performance

Author

Rebola, Joao L. ; Cartaxo, Adolfo V. T.

Author_Institution

Inst. Univ. de Lisboa (ISCTE-IUL), Lisbon, Portugal

fYear

2014

fDate

6-10 July 2014

Firstpage

1

Lastpage

4

Abstract

The impact of in-band crosstalk on direct-detection (DD) orthogonal frequency division multiplexing (OFDM) optical networks performance is assessed in a mixed modulation formats with multiple data rates scenario. It is shown that differential phase-modulated signals lead to the highest crosstalk penalty, among the DD modulation formats typically used in optical networks, with a lower crosstalk tolerance of 2.5 dB in comparison with OFDM and on-off keying interfering signals. We also show that single-sideband OFDM signals exhibit a 3 dB lower inband crosstalk tolerance than double-sideband OFDM signals.

Keywords

OFDM modulation; data communication; differential phase shift keying; optical communication; optical crosstalk; signal detection; DD OFDM optical networks performance; DD modulation formats; crosstalk penalty; differential phase-modulated signals; direct-detection OFDM optical networks performance; double-sideband OFDM signals; inband crosstalk tolerance; mixed modulation formats; multiple data rate scenario; multiple line rates; on-off keying interfering signals; orthogonal frequency division multiplexing; single-sideband OFDM signals; Amplitude modulation; Crosstalk; OFDM; Optical fiber networks; Optical filters; Optical receivers; bit error probability; direct-detection optical receivers; in-band crosstalk; mixed modulation formats; orthogonal frequency division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2014 16th International Conference on

Conference_Location

Graz

Type

conf

DOI

10.1109/ICTON.2014.6876348

Filename

6876348