掺铒光纤放大器（简称ＥＤＦＡ）和波分复用（简称ＷＤＭ）技术在光通信系统中的应用，将光纤的信息载运容量提高了若干个数量级。由于光放大器的高输出功率和多个波长的同时传输，光纤的非线性效应和色散已经成为系统性能的主要限制因素。对于目前使用的常规单模光纤来说... The application of erbium-doped fiber amplifier (referred to as EDFA) and wavelength division multiplexing (referred to as WDM) technology in optical communication systems has increased the information carrying capacity of optical fibers by several orders of magnitude. Due to the high output power of optical amplifiers and the simultaneous transmission of multiple wavelengths, the nonlinear effects and dispersion of optical fibers have become the major limiting factor of system performance. For the conventional single mode fiber currently used ...