标题： 半导体光放大器的非线性失真高斯噪声模型 显示英文标题

标题： Gaussian Noise Model of Nonlinear Distortions from Semiconductor Optical Amplifiers

摘要： 一种高斯噪声模型用于描述半导体光放大器的非线性噪声功率谱密度，该模型由Agrawal模型描述。 获得了宽带波分复用信号的非线性噪声与信号比的简单显式表达式，该表达式作为Agrawal模型参数、放大器输出功率和传输带宽的函数。 在数值仿真中评估了显式表达式的准确性及其适用范围。 当带宽与增益恢复时间的乘积$B\times\tau_c$超过100时，误差小于0.1 dB。 显示英文摘要

摘要： A Gaussian Noise Model of the nonlinear noise power spectral density is developed for a semiconductor optical amplifier as described by the Agrawal model. A simple closed-form expression is obtained for the nonlinear noise-to-signal ratio of broadband wavelength-division multiplexed signals as a function of the Agrawal model parameters, the amplifier output power and the transmission bandwidth. The accuracy of the closed-form expression and its region of validity is assessed in numerical simulations. The error is smaller than 0.1 dB when the product of bandwidth and gain recovery time $B\times\tau_c$ exceeds 100.