Optical signal quality improvement due to nonlinear interaction between spectral channels
| Autor: | I I Shikhaliev, R.R. Ubaydullaev, V N Treshchikov, Oleg E Nanii, A.V. Leonov, A G Novikov, V.A. Konyshev |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
business.industry Statistical and Nonlinear Physics 01 natural sciences Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Cross interaction Nonlinear system Optics Signal quality Brillouin scattering Modulation Wavelength-division multiplexing 0103 physical sciences Electrical and Electronic Engineering 010306 general physics business Intensity modulation |
| Zdroj: | Quantum Electronics. 46:924-929 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qel16031 |
| Popis: | This paper examines stimulated Brillouin scattering (SBS) suppression in multichannel DWDM systems owing to nonlinear cross interaction between the channels and its effect on optical signal quality in a communication link. We present an experimental study of single-, three- and five-channel systems with NRZ channels. The optical signal quality in the three- and five-channel systems is shown to be better than that in the single-channel system. The reason for this is that cross-phase modulation broadens the spectrum of the signal and raises the SBS threshold. This in turn ensures a more pronounced optical signal quality improvement due to self-phase modulation. |
| Databáze: | OpenAIRE |
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