Title :
Error-free transmission for incoherent broad-band optical communications systems using incoherent-to-coherent wavelength conversion
Author :
Menif, M. ; Mathlouthi, W. ; Lemieux, P. ; Rusch, L.A. ; Roy, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. Laval, Que., Canada
Abstract :
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.
Keywords :
error statistics; optical fibre networks; optical modulation; optical noise; optical wavelength conversion; semiconductor optical amplifiers; wavelength division multiplexing; bit-error-rate floor; cross-gain modulation; incoherent broad-band optical communications systems; incoherent-to-coherent wavelength conversion; intensity noise reduction; semiconductor optical amplifier; wavelength-division-multiplexed networks; Broadband communication; Intensity modulation; Noise reduction; Optical fiber communication; Optical modulation; Optical noise; Optical wavelength conversion; Semiconductor device noise; Semiconductor optical amplifiers; Signal processing; All-optical wavelength conversion; beat noise; broad-band source; cross-gain modulation (XGM); optical-code-division multiple access (OCDMA); semiconductor optical amplifiers (SOAs); spectrum-sliced wavelength-division multiplexing (SS-WDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2004.838817
