随着数据传输容量的提高和互联网的广泛使用,大容量波分复用在美国已成为满足大带宽要求的关键技术.大容量波分复用网络成本低、容量大.该网络在同一条光纤上能传输多路光载波的能力使网络几乎能达到无限带宽.同时,它又是可伸缩的,这意味着网络运营者在需要增加容量时,只要在网络中增加不同波长的光载波即可. With the improvement of data transmission capacity and the extensive use of the Internet, high-capacity WDM has become a key technology in the United States to meet the requirements of large bandwidth.High-capacity WDM networks have low cost and large capacity.The network is on the same optical fiber The ability to transmit multiple optical carriers enables the network to reach almost unlimited bandwidth, while at the same time, it is scalable, meaning that network operators need to add more optical carriers of different wavelengths to the network when they need to increase capacity .