Answers are grounded in this paper and cite their sources.
A general theory is developed to describe multichannel amplification in semiconductor laser amplifiers. It includes the effects of both gain saturation and carrier-density modulation. The carrier-density modulation, occurring as a result of beating among the neighboring channels, is responsible for nondegenerate four-wave mixing. This nonlinear phenomenon not only unequalizes the channel gains but also generates new sidebands on both sides of the boundary channels. The effects of four-wave mixing on multichannel amplification are illustrated by considering the 30-channel case in detail. The theory is useful for quantifying the amplifier-induced crosstalk and identifying the operating conditions for reducing such crosstalk in multichannel coherent communication systems.>
No takes yet. Share an insight, caveat, or question.
Agrawal et al. (1990) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: