Comparison of 128-SP-QAM and PM-16QAM in long-haul WDM transmission
Artikel i vetenskaplig tidskrift, 2013

We investigate 128-level set-partitioning quadrature amplitude modulation (128-SP-QAM) experimentally and compare the performance to polarization-multiplexed 16QAM both at the same bit rate and at the same symbol rate. Using a recirculating loop we study both single channel and wavelength-division multiplexing (WDM) transmission and demonstrate a reach of up to 2680 km at a bit-error rate of 10−3 for 128-SP-QAM. We confirm that 128-SP-QAM has an increased sensitivity compared to PM-16QAM and show that the maximum transmission distance can be increased by more than 50 % at the same bit rate for both single channel and WDM transmission. We also investigate the performance at the same symbol rate as a possible fall back solution in a degrading link.

modulation

Coherent communications

long haul transmission

WDM

16-QAM

fiber optical communication

modulation format

128-SP-QAM

power efficiency

Författare

Tobias Eriksson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Martin E Sjödin

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Pontus Johannisson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Optics Express

1094-4087 (ISSN)

Vol. 21 16 19269-19279

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1364/OE.21.019269

Mer information

Skapat

2017-10-06