Performance Comparison of Differential 8-Ary Modulation Formats in High-Speed Optical Transmission Systems
Artikel i vetenskaplig tidskrift, 2011
This paper presents back-to-back and transmission performance comparisons between single-polarization 120 Gbit/s RZ-DQP-ASK and RZ-D8PSK formats in a single-wavelength system. In the back-to-back configuration, we determine the OSNR requirements of the two formats and compare the results with those obtained analytically and numerically. In the transmission experiments, we examine signal constellations to quantify the significance of intra-channel fiber nonlinearities and investigate the BER performance of the two formats over different reaches (up to 480 km). The results show that the performance of DQP-ASK is superior to D8PSK in back-to-back configuration but is inferior over long distances.
IFWM
fiber
ASK
SPM
differential detection
modulation format
nonlinearities
D8PSK
DQPSK
optical transmission
DQP-ASK
cross-phase modulation
Författare
Ekawit Tipsuwannakul
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Pontus Johannisson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Mats Sköld
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Erik Agrell
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Magnus Karlsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Peter Andrekson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Journal of Lightwave Technology
0733-8724 (ISSN) 1558-2213 (eISSN)
Vol. 29 19 2954-2962 5971757Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier
Elektroteknik och elektronik
DOI
10.1109/JLT.2011.2163495