Tag Archives: undersea fiber optic cables

Who Owns the Real Information System

In January 2022, the head of the UK’s armed forces has warned that Russia submarine activity is threatening underwater cables that are crucial to communication systems around the world. Admiral Sir Tony Radakin said undersea cables that transmit internet data are ‘the world’s real information system,’ and added that any attempt to damage then could be considered an act of war.

The internet seems like a post- physical environment where things like viral posts, virtual goods and metaverse concerts just sort of happen. But creating that illusion requires a truly gargantuan—and quickly-growing—web of physical connections. Fiber-optic cable, which carries 95% of the world’s international internet traffic, links up pretty much all of the world’s data centers…

Where those fiber-optic connections link up countries across the oceans, they consist almost entirely of cables running underwater—some 1.3 million kilometers (or more than 800,000 miles) of bundled glass threads that make up the actual, physical international internet. And until recently, the overwhelming majority of the undersea fiber-optic cable being installed was controlled and used by telecommunications companies and governments. Today, that’s no longer the case.

In less than a decade, four tech giants— Microsoft, Google parent Alphabet, Meta (formerly Facebook ) and Amazon —have become by far the dominant users of undersea-cable capacity. Before 2012, the share of the world’s undersea fiber-optic capacity being used by those companies was less than 10%. Today, that figure is about 66%.  In the next three years, they are on track to become primary financiers and owners of the web of undersea internet cables connecting the richest and most bandwidth-hungry countries on the shores of both the Atlantic and the Pacific.

By 2024, the four are projected to collectively have an ownership stake in more than 30 long-distance undersea cables, each up to thousands of miles long, connecting every continent on the globe save Antarctica. In 2010, these companies had an ownership stake in only one such cable—the Unity cable partly owned by Google, connecting Japan and the U.S. Traditional telecom companies have responded with suspicion and even hostility to tech companies’ increasingly rapacious demand for the world’s bandwidth. Industry analysts have raised concerns about whether we want the world’s most powerful providers of internet services and marketplaces to also own the infrastructure on which they are all delivered. This concern is understandable. Imagine if Amazon owned the roads on which it delivers packages.

But the involvement of these companies in the cable-laying industry also has driven down the cost of transmitting data across oceans for everyone, even their competitors….Undersea cables can cost hundreds of millions of dollars each. Installing and maintaining them requires a small fleet of ships, from surveying vessels to specialized cable-laying ships that deploy all manner of rugged undersea technology to bury cables beneath the seabed. At times they must lay the relatively fragile cable—at some points as thin as a garden hose—at depths of up to 4 miles.

All of this must be done while maintaining the right amount of tension in the cables, and avoiding hazards as varied as undersea mountains, oil-and-gas pipelines, high-voltage transmission lines for offshore wind farms, and even shipwrecks and unexploded bombs…In the past, trans-oceanic cable-laying often required the resources of governments and their national telecom companies. That’s all but pocket change to today’s tech titans. Combined, Microsoft, Alphabet, Meta and Amazon poured more than $90 billion into capital expenditures in 2020 alone…

Most of these Big Tech-funded cables are collaborations among rivals. The Marea cable, for example, which stretches approximately 4,100 miles between Virginia Beach in the U.S. and Bilbao, Spain, was completed in 2017 and is partly owned by Microsoft, Meta and Telxius, a subsidiary of Telefónica, the Spanish telecom.  Sharing bandwidth among competitors helps ensure that each company has capacity on more cables, redundancy that is essential for keeping the world’s internet humming when a cable is severed or damaged. That happens around 200 times a year, according to the International Cable Protection Committee, a nonprofit group. 

There is an exception to big tech companies collaborating with rivals on the underwater infrastructure of the internet. Google, alone among big tech companies, is already the sole owner of three different undersea cables

Excerpts from Christopher Mims, Google, Amazon, Meta and Microsoft Weave a Fiber-Optic Web of Power, WSJ, Jan. 15, 2022

Conquering Virgin Digital Lands a Cable at a Time

Facebook  said it would back two new underwater cable projects—one in Africa and another in Asia in collaboration with Alphabet — that aim to give the Silicon Valley giants greater control of the global internet infrastructure that their businesses rely on.

The 2Africa project, a partnership between Facebook and several international telecom operators, said that it would add four new branches: the Seychelles, Comoro Islands, Angola and Nigeria. The project’s overall plan calls for 35 landings in 26 countries, with the goal of building an underwater ring of fiber-optic cables around Africa. It aims to begin operating in 2023… Separately, Facebook that it would participate in a 7,500-mile-long underwater cable system in Asia, called Apricot, that would connect Japan, Taiwan, Guam, the Philippines, Indonesia and Singapore. Google said that it would also join the initiative, which is scheduled to go live in 2024.

Driving the investments are costs and control. More than 400 commercially operated underwater cables, also known as submarine cables, carry almost all international voice and data traffic, making them critical for the economies and national security of most countries…Telecom companies own and operate many of these cables, charging fees to businesses that use them to ferry data. Facebook and Google used so much bandwidth that they decided about a decade ago that it would make sense to cut out the middleman and own some infrastructure directly.

Excerpts from Stu Woo, Facebook Backs Underwater Cable Projects to Boost Internet Connectivity, WSJ, Aug. 17, 2021

Under-Water Data Centers: Reliable, Cool and Cheap

Earlier this year a ship hauled a large, barnacle-covered cylinder sporting a Microsoft logo from the seas off the Orkney islands. Inside were a dozen server racks, of the sort found in data-centres around the world. Sunk in 2018, and connected to the shore by cable, the computers had spent the past couple of years humming away, part of an experiment into the feasibility of building data-centres underwater.

On September 14th, 2020 Microsoft revealed some results. The aquatic data-centre suffered equipment failures at just one-eighth the rate of those built on land. Being inaccessible to humans, the firm could fill it with nitrogen instead of air, cutting down corrosion. The lack of human visitors also meant none of the bumping and jostling that can cause faults on land.

Microsoft hopes some of the lessons can be applied to existing, land-based data-centers. In the longer term, though, it notes that building underwater offers advantages beyond just reliability. Immersion in seawater helps with cooling, a big expense on land. Data-centres work best when placed close to customers. Land in New York or London is expensive, but nearby sea-floor is cheap. More than half the world’s population lives within 120 miles (192km) of the sea. Ben Cutler, the engineer in charge of the project, says submarine data-centres could be co-located with offshore wind farms as “anchor” customers. The cylinder fits in a standard shipping container, so could be deployed to remote places like islands, or even disaster areas to support relief efforts.

Excerpts from Cloud computing: Davy Jones’s data-center, Economist, Sept. 19, 2020

A Nasty Divorce: US-China Internet Cables

United States officials granted Google permission to turn on a high-speed internet link to Taiwan but not to the Chinese territory of Hong Kong, citing national-security concerns in a ruling that underscores fraying ties between Washington and Beijing.“There is a significant risk that the grant of a direct cable connection between the United States and Hong Kong wouldpose an unacceptable risk to the national security and law enforcement interests of the United States,” the U.S. Department of Justice said in its decision, which was backed by the departments of Homeland Security and Defense. The agencies instead urged the Federal Communications Commission to grant Google owner Alphabet  permission to start using the portion of its 8,000-mile underwater Pacific Light cable that connects California to Taiwan. .

The decision threatens to end Hong Kong’s dominance as a top destination for U.S. internet cables and puts at risk several ongoing projects, including a Facebook backed fiber-optic line linking Los Angeles to Hong Kong and a Google-backed project linking Hong Kong to the U.S. territory of Guam.

Washington is turning to the self-ruling island of Taiwan, which the U.S. supports with arms sales and unofficial political ties despite Beijing’s claims that it is part of China. U.S. officials are also considering alternatives such as Indonesia, Philippines, Thailand, and Vietnam.

Google and Facebook originally teamed up to build Pacific Light to Hong Kong in 2016, continuing the Silicon Valley giants’ long-term strategy to take more control of the network pipes that connect their data centers. The web companies and their Chinese investment partners kept building the cable even as U.S. authorities withheld the regulatory approvals they needed to start using it.

Major international data projects are subject to review by Team Telecom, a coalition of federal agencies with national-security oversight. The panel has taken a hard line against China in recent years. Team Telecom in 2018 recommended for the first time the denial of a Chinese application—that of China Mobile —to provide telecom services through U.S. networks, citing national-security and law-enforcement concerns.

President Trump on April 4 2020 signed an executive order that puts the attorney general in charge of overseeing Team Telecom and gives the panel direct authority to review existing licenses to provide such services, including those issued earlier to Chinese state-owned operators China Telecom and China Unicom.

Excerpts from Drew FitzGerald and Kate O’Keeffe, U.S. Allows Google Internet Project to Advance Only if Hong Kong Is Cut Out, WSJ, Apr. 9, 2020

US v. China: The Slow and Sure Conquest of Internet Infrastructure


A new front has opened in the battle between the U.S. and China over control of global networks that deliver the internet. This one is beneath the ocean. While the U.S. wages a high-profile campaign to exclude China’s Huawei Technologies Co. from next-generation mobile networks over fears of espionage, the company is embedding itself into undersea cable networks that ferry nearly all of the world’s internet data.

About 380 active submarine cables—bundles of fiber-optic lines that travel oceans on the seabed—carry about 95% of intercontinental voice and data traffic, making them critical for the economies and national security of most countries. 

The Huawei Marine’s Undersea Cable Network majority owned by Huawei Technologies, has worked on some 90 projects to build or upgrade submarine cables around the world…US o fficials say the company’s knowledge of and access to undersea cables could allow China to attach devices that divert or monitor data traffic—or, in a conflict, to sever links to entire nations.  Such interference could be done remotely, via Huawei network management software and other equipment at coastal landing stations, where submarine cables join land-based networks, these officials say.

Huawei Marine said in an email that no customer, industry player or government has directly raised security concerns about its products and operations.Joe Kelly, a Huawei spokesman, said the company is privately owned and has never been asked by any government to do anything that would jeopardize its customers or business. “If asked to do so,” he said, “we would refuse.”

The U.S. has sought to block Huawei from its own telecom infrastructure, including undersea cables, since at least 2012. American concerns about subsea links have since deepened—and spread to allies—as China moves to erode U.S. dominance of the world’s internet infrastructure…..Undersea cables are owned mainly by telecom operators and, in recent years, by such content providers as Facebook and Google. Smaller players rent bandwidth.Most users can’t control which cable systems carry their data between continents. A handful of switches typically route traffic along the path considered best, based on available capacity and agreements between cable operators.

In June 2017, Nick Warner, then head of Australia’s Secret Intelligence Service, traveled to the Solomon Islands, a strategically located South Pacific archipelago. His mission, according to people familiar with the visit, was to block a 2016 deal with Huawei Marine to build a 2,500-mile cable connecting Sydney to the Solomons.  Mr. Warner told the Solomons’ prime minister the deal would give China a connection to Australia’s internet grid through a Sydney landing point, creating a cyber risk, these people said. Australia later announced it would finance the cable link and steered the contract to an Australian company.  In another recent clash, the U.S., Australia and Japan tried unsuccessfully in September 2018 to quash an undersea-cable deal between Huawei Marine and Papua New Guinea.

U.S. and allied officials point to China’s record of cyber intrusions, growing Communist Party influence inside Chinese firms and a recent Chinese law requiring companies to assist intelligence operations. Landing stations are more exposed in poorer countries where cyber defenses tend to be weakest, U.S. and allied officials said. And network management systems are generally operated using computer servers at risk of cyber intrusion. Undersea cables are vulnerable, officials said, because large segments lie in international waters, where physical tampering can go undetected. At least one U.S. submarine can hack into seabed cables, defense experts said. In 2013, former National Security Agency contractor Edward Snowden alleged that Britain and the U.S. monitored submarine cable data. The U.S. and its allies now fear such tactics could be used against them. American and British military commanders warned recently that Russian submarines were operating near undersea cables. In 2018, the U.S. sanctioned a Russian company for supplying Russian spies with diving equipment to help tap seabed cables.


The Ionian Sea Submarine Cable Project (Greece) 

China seeks to build a Digital Silk Road, including undersea cables, terrestrial and satellite links, as part of its Belt and Road plan to finance a new global infrastructure network. Chinese government strategy papers on the Digital Silk Road cite the importance of undersea cables, as well as Huawei’s role in them. A research institute attached to China’s Ministry of Industry and Information Technology, in a paper published in September, praised Huawei’s technical prowess in undersea cable transmission and said China was poised to become “one of the world’s most important international submarine cable communication centers within a decade or two.” China’s foreign and technology ministries didn’t respond to requests for comment…

Huawei Marine Networks

Bjarni Thorvardarson, then chief executive of the cable’s Ireland-based operator, said U.S. authorities raised no objections until 2012, when a congressional report declared Huawei Technologies a national security threat. Mr. Thorvardarson wasn’t convinced. “It was camouflaged as a security risk, but it was mostly about a preference for using U.S. technology,” he said. Under pressure, Mr. Thorvardarson dropped Huawei Marine from Project Express in 2013. The older cable network continued to use Huawei equipment.

The company is now the fourth-biggest player in an industry long dominated by U.S.-based SubCom and Finnish-owned Alcatel Submarine Networks. Japan’s NEC Corp is in third place.Huawei Marine is expected to complete 28 cables between 2015 and 2020—nearly a quarter of all those built globally—and it has upgraded many more, according to TeleGeography, a research company.

Excerpts from America’s Undersea Battle With China for Control of the Global Internet Grid , WSJ, Mar. 12, 2019

The Power of Submarine Cables

Access to ultra-fast internet cables in London is likely to make financial firms reluctant to move out of London even after Britain leaves the European Union, a study by the European Central Bank has found.

But an ECB study found that any withdrawal from London would likely be gradual as firms would be loath to give up on Britain’s fibre-optic cables, crucial for ultra-fast electronic trading.

“The UK’s advantage as a hub for trading using fibre-optic cables, combined with institutional inertia, suggest that any relocation of trading after Brexit, if at all, would likely be gradual,” the ECB said in its study.  Around 84 percent of transactions in euro are initiated outside the euro area, with Britain taking the lion’s share at 43 percent, according to a survey by the Bank for International Settlement cited in the ECB study.

“Technology has economically important implications for the distribution of foreign exchange transactions across financial centres, as a result,” the ECB said.   “Undersea fibre-optic cables provide a competitive advantage to financial centres located near oceans, like Singapore, because they are directly connected to the internet backbone, at the expense of landlocked cities like Zurich,” it added.

Excerpts from Fast Internet Likely to Keep Trading in London After Brexit: ECB, Reuters, July 5, 2017.

Internet Cables and US Security

A real-estate magnate is financing Google’s and Facebook Inc.’s new trans-Pacific internet cable, the first such project that will be majority-owned by a single Chinese company.  Wei Junkang, 56, is the main financier of the cable between Los Angeles and Hong Kong, a reflection of growing interest from China’s investors in high-tech industries.   It will be the world’s highest-capacity internet link between Asia and the U.S.

For Alphabet Inc.’s Google and Facebook, the undersea cable provides a new data highway to the booming market in Southeast Asia. Google and Facebook, which are blocked in China but seeking ways back in, declined to comment on market possibilities in China. Google said the project, called the Pacific Light Cable Network, will be its sixth cable investment and will help it provide faster service to Asian customers…

Backers hope to have Pacific Light operating in late 2018. The elder Mr. Wei’s company, Pacific Light Data Communication Co., will own 60%, Eric Wei said, and Google and Facebook will each own 20%. The project cost is estimated at $500 million, and the Chinese company hired U.S. contractor TE SubCom to manufacture and lay the 17-millimeter wide, 7,954-mile long cable…

The cable project requires U.S. government approval, including a landing license from the Federal Communications Commission and a review by Team Telecom, a committee of officials from the departments of defense, homeland security and justice….

Pacific Light will likely face higher scrutiny from Team Telecom due to the controlling interest by a foreign investor, said Bruce McConnell, global vice president of the EastWest Institute and a former senior cybersecurity official with the Department of Homeland Security.

Team Telecom rarely rejects a landing license application, Mr. McConnell said, but cable operators must agree to security terms.“The agreement is usually heavily conditioned to ensure that (U.S.) security concerns are met,” he said.

The terms often require an American operator of the cable to assist U.S. authorities in legal electronic surveillance, including alerting regulators if foreign governments are believed to have accessed domestic data, according to copies of agreements filed with the FCC. The U.S. landing party usually must also be able to cut off U.S. data from the international network if asked…

More than 99% of the world’s internet and phone communications rely on fiber-optic cables crisscrossing continents and ocean floors. That makes these cables critical infrastructure to governments and a target for espionage.

One of the Eric Wei’s businesses is a Chinese alternative to the QR code called a D9 code, which the company promotes as a “safe” alternative to foreign technology.

Excerpts from  China Firm Backs Asia-US Cable, Wall Street Journal, Mar. 16, 2017

Undersea War Networks: DARPA Tuna

DARPA’s Tactical Undersea Network Architecture (TUNA) program completed its initial phase, successfully developing concepts and technologies aimed at restoring connectivity for U.S. forces when traditional tactical networks are knocked offline or otherwise unavailable. The program now enters the next phase, which calls for the demonstration of a prototype of the system at sea.

TUNA seeks to develop and demonstrate novel, optical-fiber-based technology options and designs to temporarily restore radio frequency (RF) tactical data networks in a contested environment via an undersea optical fiber backbone. The concept involves deploying RF network node buoys—dropped from aircraft or ships, for example—that would be connected via thin underwater fiber-optic cables. The very-small-diameter fiber-optic cables being developed are designed to last 30 days in the rough ocean environment—long enough to provide essential connectivity until primary methods of communications are restored.

Supplying power to floating buoy nodes on the open sea presents a particular challenge. During the first phase of the program, the University of Washington’s Applied Physics Lab (APL) developed a unique concept called the Wave Energy Buoy that Self-deploys (WEBS), which generates electricity from wave movement. The WEBS system is designed to fit into a cylinder that could be deployed from a ship or aircraft.

Excerpt from Networks of the Sea Enter Next Stage, DARPA website, Jan. 5, 2017

Virgin Digital Land to Invade: Google

Google’s Project Loon is an effort to develop high-altitude balloons that can bring Internet connectivity to remote areas. The technology has been tested over the past couple of years, but not at scale. Rama, a quasi–public company controlled by venture capitalist Chamath Palihapitiya [who runs Silicon Valley venture firm Social Capital] and the Sri Lankan government, aims to do just that. Google sent the first Loon balloon above Sri Lanka in February 2016, and the government says it’s working with the company to blanket the country with coverage from another dozen. …Under a deal Palihapitiya negotiated, Google is leading the Loon launches, development, and maintenance, and Rama will run the software to control access to the balloons’ Internet connections and handle billing. People will still pay local operators for data, and carriers will pay Rama an as-yet-undisclosed fee to help ferry traffic.

The Loon fleet could offer a cheaper alternative to undersea Internet cables, which pass through the regional choke points of Singapore and Hong Kong. Carriers in developing Asian and South American nations pay more than 10 times the bandwidth prices their European and U.S. counterparts do, researcher TeleGeography estimates. (The median wholesale price for a monthly 10-gigabit-per-second connection in Los Angeles or Frankfurt is $1; in Mumbai, it’s $15.) Sri Lanka’s data use is growing 45 percent a year and will likely do so for the next decade, the United Nations estimates.

Excerpts from  A Would Be Wi-Fi Paradise, Bloomberg Business Week, Mar. 27, 2016

The Militarization of Deep Sea: DARPA Tuna

Tactical Undersea Network Architectures (TUNA). Solicitation Number: DARPA-BAA-14-32, Defense Advanced Research Projects Agency (DARPA)

DARPA is soliciting innovative research proposals in the area of undersea fiber optic-based communications networks. Proposed research should investigate innovative approaches that enable revolutionary advances in science, devices, or systems. Specifically excluded is research that primarily results in evolutionary improvements to the existing state of practice.  This solicitation seeks proposals for an initial fifteen month phase (Phase 1) of the Tactical Undersea Network Architectures (TUNA) program. Performers are sought for the following Technical Areas (TAs):

TA1. System designs
TA2. Small undersea fiber optic cables
TA3. Buoy node systems.

from Federal Business Opportunities, Apr. 17, 2014