Insertion of 100Gb/s Coherent PDM-QPSK Channels over Legacy Optical Networks Relying on Low Chromatic Dispersion Fibres

Author

Bertran-Pardo, Oriol ; Renaudier, Jérémie ; Charlet, Gabriel ; Tran, Patrice ; Mardoyan, Haïk ; Salsi, Massimiliano ; Bertolini, Marco ; Bigo, Sébastien

Author_Institution

Centre de Villarceaux, Alcatel-Lucent Bell Labs., Nozay, France

fYear

2009

Firstpage

1

Lastpage

6

Abstract

We investigate the potential of 100 Gb/s polarization division multiplexed (PDM-) quadrature phase shift keying (QPSK) paired with coherent detection to enable the future capacity upgrade of current networks designed for 10 Gb/s nonreturn to zero (NRZ) on-off keying data. We experimentally assess the tolerance to nonlinear effects of such a solution over optical systems based on low chromatic dispersion fibres. We particularly study the performance penalties brought by copropagating channels (either PDM-QPSK or 10 Gb/s NRZ) onto 100 Gb/s PDM-QPSK data, in which both polarisation tributaries are over-modulated with return-to-zero and temporally interleaved by half a symbol period. Besides, we investigate one option to overcome these limitations: introducing band-gaps in the multiplex.

Keywords

multiplexing; optical fibre dispersion; optical fibre networks; quadrature phase shift keying; PDM-QPSK channel; band-gaps; bit rate 10 Gbit/s; bit rate 100 bit/s; legacy optical network; low chromatic dispersion fibre; polarization division multiplexing; quadrature phase shift keying; Bit rate; Chromatic dispersion; Modulation; Optical fiber networks; Optical fiber polarization; Optical noise; Optical receivers; Optical signal processing; Polarization mode dispersion; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE

Conference_Location

Honolulu, HI

ISSN

1930-529X

Print_ISBN

978-1-4244-4148-8

Type

conf

DOI

10.1109/GLOCOM.2009.5426282

Filename

5426282