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自从光纤通信于70年代进入实用化以来,世界各国竞相研究各种海底光缆来代替原来的海底同轴电缆。海底光缆与海底同轴电缆相比,具有中继段长、易于分支、容量大、适合于数字传输和节约用铜等主要优点,很快成为卫星通信的竞争对手。国际电报电话咨询委员会(CCITT)第XV研究组(传输)在1985-1988年研究周期内列有19/XV号课题进行海缆的研究,而重点在于海底光缆。该课题是分配给XV研究组的XV/5工作组负责研究的。在
Since optical fiber communication came into practical use in the 1970s, various countries in the world have been competing to study various submarine optical cable instead of the original submarine coaxial cable. Submarine cable and submarine coaxial cable compared with the length of the relay section, easy to branch, large capacity, suitable for digital transmission and save copper and other major advantages, and soon became a satellite communications competitors. Subcommittee No. 19 / XV on the study of Submarine Cables (CCITT) Study Group XV (Transmission) during the 1985-1988 study period focused on submarine cables. This task is to be studied by the XV / 5 Working Group assigned to the XV Study Group. in