分析计算了掺铒光纤放大器（ＥＤＦＡ）在ＡＭ－ＣＡＴＶ光纤传输系统中引入的非线性失真，在总结了两种补偿方法的同时，提出了一种新的补偿方法——光补偿，计算机模拟和实验结果表明，它对ＥＤＦＡ的非线性失真有一定的改善。最后对这三种补偿方法进行了简单的比较 The nonlinear distortion introduced by the erbium-doped fiber amplifier (EDFA) in the AM-CATV optical fiber transmission system is analyzed and calculated. At the same time, the two compensation methods are summarized, and a new compensation method is proposed, such as optical compensation, computer simulation and Experimental results show that it has some improvement on the nonlinear distortion of EDFA. Finally, a simple comparison of these three compensation methods is made