Reducing crosstalk and signal distortion in wavelength-division multiplexing by increasing carrier lifetimes in semiconductor optical amplifiers
作者： Shuangmei Xu , J.B. Khurgin , I. Vurgaftman , J.R. Meyer
关键词: Preamplifier 、 Bit error rate 、 Differential gain 、 Multiplexing 、 Electronic engineering 、 Amplifier 、 Wavelength-division multiplexing 、 Physics 、 Carrier lifetime 、 Optical amplifier
摘要: A simple theory for the crosstalk in multichannel wavelength-division multiplexing (WDM) communication systems caused by cross gain saturation semiconductor optical amplifier (SOA) is developed. It shown that increasing carrier recombination lifetime while reducing differential SOA greatly mitigates crosstalk. An using type-II quantum wells with reduced probability designed, and its characteristics are numerically modeled a number of different WDM systems. when used as preamplifier or local/metro networks small amplifiers, error-free transmission can be achieved SOA.
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