光纤系统的应用很有前途,它的可靠性在短程海底应用中已得到证实,但真正考验是在横穿大西洋的实际使用中。与同轴电缆系统相比,最近批准的横穿大西洋(TAT)的光纤系统具有几个优点,即系统可靠性改善、价廉、系统设计具有获得重大技术进展的潜力。称为TAT-1的第一个横穿大西洋的电缆系统,于1956年开始运行。1961年,CANTAT-1多路通信系统(在单根同轴电缆上实现双向通道)开始运行。在此装置中,需有功率分离和带通滤波。自那时起,平均每隔 The application of fiber optic systems is promising, and its reliability has been demonstrated in short-range submarine applications, but the real test is in actual use across the Atlantic. The recently approved transatlantic (TAT) fiber optic system has several advantages over coaxial cable systems in that system reliability is improved, its price is low, and system designs have the potential to achieve major technological advances. The first transatlantic cable system, called TAT-1, started operation in 1956. In 1961, the CANTAT-1 multiplex communication system (bidirectional channel on a single coaxial cable) started to operate. In this device, there must be power separation and bandpass filtering. Since then, on average every other day