论文部分内容阅读
据过去3年中的宣布,有60多个新的海底光纤系统在1990年～1997年间开通,这就使1989年来在运行的和计划投入使用的海底光纤系统的数量翻一番。 Kessler市场情报公司(KMI)最近一篇题为“世界光纤系统简况”的研究报告给出了世界范围内海底光纤系统的数量以及121个系统的路由图,并指出:目前全世界已敷设的海底光纤系统有70个,1992年～1997年间计划敷设51个海底光纤系统。已经敷设的所有海底光纤系统中有三分之二在北欧(23个)和地中海区域(22个)。但是,大西洋和太平洋地区的系统占世界海底光纤系统投资总额的60％,而北美与欧洲,北美与亚洲相连接的长距离越洋光缆占系统成本的大部分。
Over the last three years, more than 60 new subsea fiber systems were opened between 1990 and 1997, doubling the number of undersea fiber systems in operation and planned for operation in 1989. A recent report by Kessler Market Intelligence Corporation (KMI), entitled “World Fiber Systems Fact Sheet”, gives the number of seabed fiber optic systems worldwide and the routing of 121 systems and points out that the seabed There are 70 optical fiber systems and 51 submarine optical fiber systems are planned to be laid between 1992 and 1997. Two-thirds of all submarine optical fiber systems already deployed are in Northern Europe (23) and in the Mediterranean (22). However, systems in the Atlantic and Pacific regions account for 60% of the total investment in the world’s submarine fiber-optic systems, while long-distance transoceanic fiber cables linking North America to Europe, North America and Asia account for the bulk of the system cost.