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Error-free transmission for incoherent broad-band optical communications systems using incoherent-to-coherent wavelength conversion

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5 Author(s)
Menif, M. ; Dept. of Electr. & Comput. Eng., Univ. Laval, Que., Canada ; Mathlouthi, W. ; Lemieux, P. ; Rusch, L.A.
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A new method is presented to exploit the cross-gain modulation mechanism in semiconductor optical amplifiers to reduce the intensity noise of spectrum-sliced communications systems via conversion of the modulated incoherent optical signal into a coherent signal before the detection process. Wavelength-division-multiplexed networks using broad-band sources have performance limited by intensity noise; conversion from an incoherent to a coherent signal reduces the intensity noise and enables the elimination of the bit-error-rate floor.

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Lightwave Technology, Journal of  (Volume:23 ,  Issue: 1 )