Analysis of Cross-Phase Modulation using a periodic signal in a Single-Mode Fiber

Title & Authors
Analysis of Cross-Phase Modulation using a periodic signal in a Single-Mode Fiber
Lee, Jong-Hyung;

Abstract
The pump-probe scheme is used to analyze the cross-phase modulation penalty of a single-mode fiber in a WDM system. The pump signal is assumed to be a periodically modulated input like a raised sinusoidal. The periodic signal models an alternating bit sequence, and leads to an analytical expression of CPM penalty which is measured by EOP. The derived expression shows good agreement with numerical results in conventional single-mode fiber systems over a wide range of channel spacing, $\small{{\Delta}f}$. In dispersion-shifted fiber systems when $\small{{\Delta}f}$ < 100GHz, the derived expression shows increased discrepancy with the numerical results due to the increased FWM. This is not a surprising because the pump-probe scheme is used to analyze system performance degradation due to CPM.
Keywords
CPM;fiber nonlinearity;first walk-off approximation;pump-probe analysis;WDM system;
Language
Korean
Cited by
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