What is a submarine Optical Fiber Cable

Submarine cable, Submarine Optical Fiber Cable. Also known as submarine communications cable is wire wrapped with insulating material, the submarine for the establishment of telecommunications transmission between countries. The first submarine communications cable telegraph communications. The cable is the most time was the introduction of telephone communications, and computer network communications. Fiber cable also uses modern technology to transfer digital information, and set up more advanced Internet and telephone communications private data communications.

Submarine cable system as a high-quality, low cost, high-capacity transmission means of increasing people of all ages, particularly the use of EDFA (erbium-doped fiber amplifier) as a direct amplification of optical repeater multi-relay technology, the transmission capacity from 560Mb / s to 7 times in one fell swoop, has developed a fiber that can be transmitted per 5Gb / s signal of the submarine cable system.

Submarine cable laid in deep or shallow water generally, or river, can not be easily damaged. World network can be seen as a large LAN, submarine and land fiber optic cable to connect them into the Internet, cable is the Internet's "central nervous system", while the U.S. is almost the Internet "brain." Connect the "central nervous" and "brain" is the submarine cable system, which is divided into two onshore facilities and the majority of underwater equipment. Shore equipment, voice, image and data communication services such as package transmission. Underwater devices responsible for communications signal processing, sending and receiving. Underwater equipment into submarine cable, repeaters and "branch unit" three parts: the submarine cable is one of the most important and most vulnerable part.