How Are Submarine Optical Cables Laid? What To Do If The Submarine Cable Is Broken

- Jul 31, 2020-  


Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables use optical fibers as materials to transmit telephone and Internet signals. In this era of information technology, many people think that our network data is transmitted through satellites. In fact, more than 90% of communication data in daily life is transmitted through optical cables. Information and information are connected through the transmission of optical cables. It is relatively convenient to lay optical cables on land. However, it is convenient and convenient to complete information exchange between islands or between countries through cross-sea optical cable connection. Fast, it must be completed through the submarine communication cable connection. In this article, the editor of Xianji.com will introduce to you how the submarine optical cable is laid and what to do if the submarine cable is broken. Let’s take a look.


In 1850, Britain and France had already laid the first submarine cable in the English Channel, but technology was not very developed at that time. At that time, the cables did not have any protection. Damaged, but now that the technology is advanced, the optical cable under the sea is safer.

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At present, scientists and geologists plan and test the paths of communication optical cables on the seabed in advance. They need to test paths to avoid unsafe areas on the seabed in the ocean, and to lay optical cables, special fiber-optic dormitory boats are required. First, it is necessary to roll the optical cable to be laid on the ship, and set up a special subsea excavator in the bow part. He is like the plow used by farmers when they do farm work. It can safely bury the optical cable on the sea floor to protect the optical cable.


When the fiber optic cable laying ship is running on the seabed, the excavation opportunity goes deep into the seabed and uses the high-pressure water column on the seabed to wash away the sediment on the seabed to form a trench. This is to lay the fiber optic cable rolled on the bow into the sediment on the seabed. Reuse the raised mud and sand to cover the optical cable naturally. With the continuous advancement of the optical cable laying ship, one optical cable can be easily laid.


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