
Proceedings Paper
Numerical investigation of four-wave mixing in DWDM systems with high-order QAM modulation formatsFormat | Member Price | Non-Member Price |
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Paper Abstract
The wavelength-division multiplex (WDM) systems represent the key technology for future optical networks. Next step
for achieving the improvement of transmission system and growth of capacity is employment of high-order modulation
formats. This paper provides an insight into the numerical investigation on one of the most detrimental degradation effect
in multichannel systems – four-wave mixing (FWM) and its impact on transmitted signals which used novel types of
high-order square and star quadrature amplitude modulation (QAM) formats, respectively. This type of nonlinear effect
causes inter- and intra-channel crosstalk interference, what are the worst cases of all possible channel impairments,
because all spectral properties of transmitted signal are mixed together resulting to the decreasing system performance.
Our investigation is based on finding the precise solution of coupled nonlinear Schrödinger’s equations (CNLSE) for
DWDM system with channel spacing according to the ITU-T standardization. For solving CNLSE, it was created
numerical model through mathematical method referred as split-step Fourier method (SSFM). The investigation is
oriented especially on QAM formats, different kinds of optical fibers which are typically used in today’s networks and
various types of system parameters such as value of channel spacing, input power and number of channels. The obtained
results are discussed and analyzed with the aim of finding the most optimal and suitable properties of DWDM
transmission system.
Paper Details
Date Published: 18 December 2012
PDF: 7 pages
Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86972B (18 December 2012); doi: 10.1117/12.2007314
Published in SPIE Proceedings Vol. 8697:
18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jan Peřina Jr.; Libor Nozka; Miroslav Hrabovský; Dagmar Senderáková; Waclaw Urbańczyk; Ondrej Haderka; Libor Nožka, Editor(s)
PDF: 7 pages
Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86972B (18 December 2012); doi: 10.1117/12.2007314
Show Author Affiliations
Daniel Benedikovič, Univ. of Žilina (Slovakia)
Ján Litvík, Univ. of Žilina (Slovakia)
Milan Dado, Univ. of Žilina (Slovakia)
Ján Litvík, Univ. of Žilina (Slovakia)
Milan Dado, Univ. of Žilina (Slovakia)
Miroslav Markovič, Univ. of Žilina (Slovakia)
Jozef Dubovan, Univ. of Žilina (Slovakia)
Jozef Dubovan, Univ. of Žilina (Slovakia)
Published in SPIE Proceedings Vol. 8697:
18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jan Peřina Jr.; Libor Nozka; Miroslav Hrabovský; Dagmar Senderáková; Waclaw Urbańczyk; Ondrej Haderka; Libor Nožka, Editor(s)
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