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Currently, there are installed worldwide over a million kilometers of submarine cable, enough to circle the globe 30 times, forming a network of fiber optic links carrying large volumes of traffic between the continents.

Have demonstrated the feasibility actual transoceanic systems operating at 10 Gbit / s with 32 wavelengths, which means a capacity of 320 Gbit / s fiber enough to transmit more than 15 million simultaneous voice circuits in a cable Submarine typical four pairs of optical fibers.

The explosion of the international submarine cable networks occurred in the decade from 1996 to 2006, and included a lot of activity across the Pacific Ocean. The reasons that led to the tremendous and urgent need for increased connectivity trans came from Internet traffic grew at rates of 100% in those years, more than 10% annual growth telephone. Added to this the annual traffic growth of intranets because of the globalization of business, including video conferencing, data transmission and real-time multimedia applications (video images, graphic images in colors and high-fidelity sound).

An example of the volume of business is represented by the China-USA project of $ 950 million consisting of a self-protected ring of 30,000 km and linking China, Japan and Korea with USA counting with 9 points on the ground and a referral to amu and can reach a total capacity of about 1.5 Terabit / s. (1,500,000,000,000 of binary symbols per second).

The excessive optimism about the growth of the Internet and the integration of many new actors in the projects that led inexorably to the market for fiber optic systems submarine begin to contract sharply after several years of excessive investment (over $ 30 billion until 2006 globally) leaving as a feasible investment in the short term mainly up-grades of existing systems. This is why it took forces monitoring systems for these networks, GPON, the best use of networks and optimization through improved terminal equipment.

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