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由表面发射激光放大器和检测器组成的光接收器的噪声因任何增益的非均匀性而增加。如果用G(x,y)表示在点x,y处表面发射激光放大器的功率增益;用I(x,y)表示入射光强,则噪声增强因子K＇等于,其中积分对x,y从-∞到+∞区域进行。最佳值1仅当G=常数时得到。
The noise of an optical receiver consisting of a surface-emitting laser amplifier and a detector increases due to any gain inhomogeneity. If G (x, y) is the power gain of the surface emitting laser amplifier at point x, y, and I (x, y) is the incident light intensity, then the noise enhancement factor K ’is equal to, where the integral pair x, y from -∞ to + ∞ area. The best value of 1 is obtained only when G = constant.