single-mode fiber

例句：

1. 1. This new type of fiber is used in high-speed internet connections.
   这种新型光纤用于高速互联网连接。
2. 2. The fiber optic cable is the backbone of modern communication networks.
   光纤电缆是现代通信网络的骨干。
3. 3.Due to its high bandwidth and low latency, single-mode fiber is widely used in data centers.
   由于其高带宽和低延迟，单模光纤在数据中心中被广泛使用。