Reduction of excess intensity noise in spectrum-sliced incoherentlight for WDM applications |
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Authors: | Keating A.J. Sampson D.D. |
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Affiliation: | Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic.; |
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Abstract: | We investigate wideband reduction of excess intensity noise in incoherent light for application to spectrum-sliced WDM systems. The noise reduction scheme is based on optoelectronic feedforward compensation. We derive expressions for the probability density function of noise-reduced incoherent light and present measurements that are in good agreement with theory. We evaluate the significant levels of improvement obtainable in the capacity of spectrum-sliced WDM channels. For example, to obtain a signal-to-noise ratio of 50, a noise-reduced channel requires six times less optical bandwidth than a spectral slice without noise reduction |
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