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Submarine Fiber Networks Have the World on a String

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Submarine fiber network designers are taking a deep look at laser pumps, optical amplifiers and multiplexing designs that can endure the longest haul on Earth.

Tony Frisch

Submerged in the world's oceans are well over a million kilometers of submarine cable -- enough to circle the globe 30 times -- forming a network of arteries that carry huge volumes of traffic between continents. Although satellite communications can provide traffic to many locations, it plays a complementary role to cable technology, which has the volume capacity necessary for the bulk of international communication (speech, fax, data and Internet protocol). Electro-optic repeaters and fiber optics were introduced in the 1980s, before which coaxial cables were used. The introduction in...Read full article

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    Published: November 2000
    CommunicationsFeaturesfiber optics

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