The transatlantic fiber cable TAT-8 is making headlines again as Subsea Environmental Services recovers the retired cable for recycling. While you may have never heard of it, TAT-8 was the 8th transatlantic communications cable and the first transatlantic fiber-optic cable, boasting a capacity of 560 Mbit/s across two fibers connecting Tuckerton, New Jersey, to Widemouth Bay, England, and Penmarch, France via an underwater splitting device. Construction commenced in 1988, and the first call was made by Issac Asimov in 1998. After being retired in 2002, the 6,000 km cable is now being salvaged.
The Dawn of Transatlantic Fiber Cable
Built by a consortium including AT&T, France Télécom, and British Telecom, the 1.3-micron fiber utilized specialized optical repeaters approximately 40 km apart. The project cost roughly $335 million, which is nearly a billion dollars in today’s money. Optimistic projections at the time suggested the cable would eliminate the need for future cables or at least postpone capacity saturation for a decade or more. However, the cable reached its limit within just 18 months. The equivalent of 40,000 phone lines proved insufficient to meet the burgeoning demand.
In retrospect, predicting this rapid saturation might have been challenging, although the cable’s impact on accelerating internet adoption shouldn’t be overlooked. In 1989, IBM funded a dedicated T1 link between CERN and Cornell University. Ten months later, Tim Berners Lee would utilize this link to showcase his groundbreaking invention: The World Wide Web.
“The rapid saturation of TAT-8 highlights the unforeseen explosion of internet usage in the late 20th century and the constant need for infrastructure upgrades to meet growing demands.”
Recycling the Transatlantic Fiber Cable
According to Subsea Environmental Services, the cable remains in surprisingly good condition after four decades on the seabed. The recovery process underscores the growing importance of responsible disposal and recycling of obsolete infrastructure. It also provides a tangible link to the early days of the internet and the technological advancements that have shaped our world. This historic transatlantic fiber cable once represented the cutting edge of communication technology and is a reminder of how quickly technology evolves. The transatlantic fiber cable was a major step in global communications.
The Legacy of TAT-8
The retrieval of TAT-8 serves as a reminder of the rapid technological advancements in the late 20th century and the ongoing quest for faster and more reliable global connectivity. The need for more transatlantic fiber cable became immediately apparent.
Source: Hackaday
