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Intensity distortion induced by cross-phase modulation and chromatic dispersion in optical-fiber transmissions with dispersion compensation

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4 Author(s)
Bellotti, G. ; Dipt. di Ingegneria dell''Inf., Padova Univ., Italy ; Varani, M. ; Francia, C. ; Bononi, A.

In dispersion compensated systems, the intensity distortion induced by the interplay between cross-phase modulation and fiber chromatic dispersion can be a primary cause of transmission degradation. This interplay is mostly studied by time-consuming computer simulations. This letter introduces a new model of this interplay in fiber transmissions with dispersion compensation, leading to a linear filter that, applied to the input intensity of a modulated interfering channel, gives the intensity distortion of a continuous-wave probe signal at the receiver. The model can be of significant value in the search for optimized dispersion maps.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 12 )