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In WDM networks Routing and Wavelength Assignment (RWA) has proved a major challenge in the field telecommunications. Additionally, nonlinear effects have been found to limit the performance of WDM-based systems. In this paper, various RWA algorithms are analyzed in the presence of Four Wave Mixing (FWM). Based on the analysis, the obtained results reveal that the routing algorithm shortest-path-first...
This paper illustrates the impact of four wave mixing (FWM) in multichannel system. It has been shown by simulative analysis that FWM penalties can be suppressed by increasing dispersion in the fiber. Moreover FWM impact remains constant with particular value of dispersion only if the effective length of the fiber is increased.
This paper describes recent progress in measuring single mode optical fiber nonlinear coefficient. A brief description of interferometric and noninterferometric techniques is included as a basis for comparing their relative performance and limitations. All of reviewed measurement techniques use one of the Kerr-related phenomena which are self-phase modulation, modulation instability, cross-phase modulation...
We demonstrate an all-optical scheme for extinction ratio enhancement of a 10 Gb/s DPSK signal using four-wave mixing in a dispersion-flattened, highly nonlinear photonic crystal fiber. The extinction ratio is increased by over 7.8 dB.
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