摘要
光纤作为一种具有大容量传输特性的传输介质在近年来得到广泛的应用,光纤到户的发展以及越来越多的宽带信号需要传输使得同一根光纤必须传输更多的信号,密集波分复用技术的诞生使得单一的光纤上能传输更多的数据信号。作为一种理想的传输介质光纤正在代替有线电视原来使用的同轴电缆,光纤有线电视已成为国内广播电视行业的发展趋势,密集波分复用技术使得有线电视网络中已敷设的光纤获得充分利用,这一技术在光纤有线电视中正越来越多的使用。
Optic fibre is a kind of transmission medium that has the high capacity property, and get extensive application in recent years, As well as development of fibre to the house and much broadband signal needs transmit, a same optical fibre must transmit more signal, Dense Wavelength Division Multiplexing （DWDM） make unitary optical fibre can transmit more data signal. Optic fibre s replacing the coaxial cable, and Cable Television of optical cable have become the develop tendency on the profession of broadcasting and television. DWDM makes optical fibre have installed in cable television network to get use fully, This technica straight more and more uses in the cable television of optical fibre.
