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宽带指的是大容量、高速率(一般双向的速率超过256 kb it/s),因特网或网络的连接是通过比普通铜电话线的带宽高得多的同轴电缆或光缆实现的。宽带信道可以同时传输语音、图像和数据。现在有许多不同的技术适用于宽带通信,如铜线可用于数字用户线(DSL)技术,光纤技术可用于光纤到户(FTTH),有线电视网络和无线技术可用于W iF i和W i-M ax。光纤技术可以为采用FTTH网络(即光纤到最后一英里)的用户提供宽带业务。在城域网和接入网中使用理想光纤(ITUTG.652D)的特点是,理想光纤可以提供宽带业务。究其原因是低水峰ITUTG.652D在1 383±3 nm具有低衰减和小偏振模色散(PMD),从而满足和超过宽带网络对理想光纤的性能要求。
Broadband refers to high-capacity, high-speed (typically bi-directional at over 256 kbit / s) connections over the Internet or the Internet through coaxial or optical cables with much higher bandwidth than normal copper telephone lines. Broadband channels can simultaneously transmit voice, images and data. There are many different technologies now available for broadband communications such as copper for digital subscriber line (DSL) technology, fiber optic technology for fiber-to-the-home (FTTH), cable television networks and wireless technologies for W iF i and W iM ax . Fiber optic technology provides broadband services to subscribers using the FTTH network (fiber to the last mile). The ideal fiber for use in metropolitan and access networks (ITUTG.652D) is that ideal fiber provides broadband services. The reason for this is that the low water peak ITUTG.652D has low attenuation and small polarization mode dispersion (PMD) at 1 383 ± 3 nm to meet and exceed the performance requirements of ideal fiber for broadband networks.