Open AccessExperimental investigation of 84-Gb/s and 112-Gb/s polarization-switched quadrature phase-shift keying signals
Author(s) -
Johannes Fischer,
L. Molle,
Markus Nölle,
Dirk-Daniel Groß,
Carsten SchmidtLanghorst,
C. Schubert
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.00b667
Subject(s) - phase shift keying , optics , polarization division multiplexing , keying , quadrature amplitude modulation , physics , multiplexing , amplitude and phase shift keying , bit error rate , quadrature (astronomy) , wavelength division multiplexing , telecommunications , channel (broadcasting) , computer science , wavelength
We experimentally investigate 28-GBd (84-Gb/s) and 37.3-GBd (112-Gb/s) polarization-switched quadrature phase-shift keying (PS-QPSK) signals. In single-channel transmission experiments over up to 12500 km ultra large effective area fiber, we compare their performance to that of polarization-division multiplexing quadrature phase-shift keying (PDM-QPSK) signals at the same bit rates. The experimental results show that PS-QPSK not only benefits from its better sensitivity but also offers an increased tolerance to intra-channel nonlinearities.