Underwater fiber cables can ‘listen’ for provocation

The diver found a fibrous optical cable that stretched at the seabed of the North Sea. Approached until close enough to touch.

Extended his hand. But someone could say he was walking there. Someone was watching.

“He stands and just touches the cable lightly, you clearly see your signal,” said Daniel Gerwig, a global sales manager in AP Sensing, a German technology company. “The acoustic energy of the fiber is mainly violating our signal. We can measure this concern.”

More than one report Damaged telecommunication cables in the Baltic Sea removed excitement in recent months.

These are these cables carrying large volumes of Internet data among the countries launched by NATO Called “Baltic Sentry”To patrol the Baltic Sea with aircraft, warships and drones.

The EU Stepping up the measures Track and protect the cables.

Despite these efforts, the government may not be everywhere.

Thus, some companies are trying to watch what happened near any cable – using fiber optic signals to drag the cunning underwater drones or enemy ships along the seabed.

Last year, during the tests of the AP Sensing system – not a real attempt in the provocation – the diver punched his hand in the underwater cable watched by the firm.

The company also placed ships, drones and divers with sea scooters to know how accurate and determine the existence of these vehicles.

And tested the command cable’s anchor in the water, tested a vessel “can hear”.

When traveling light along a fiber optical string, small reflections Sometimes leaping back along this line. These opposite, temperature, vibrations or cable are affected by factors, including physical discomfort.

Changing a temperature can cause a change in part of a born cable, for example, this part can be discharged.

AP Sensing shows me the video of a man walking along a lawn before lifting a rifle and sets fire to a test. A fiber optic cable in a few meters away took the whole sequence.

“You see every foot dream,” says Clemens Pohl, CEO, pointed out a schedule that reveals the riots in the fiber optic signal. Footprints appear as soon as a short blips or lines and a larger leap.

With this technology, the approximate size of a ship passing over an underwater cable, as well as location and in some cases, in the direction of his journey. This can be linked to the automatic identification system (AIS) notes, which broadcast satellite images or even the most ships.

It is possible to add monitoring capabilities for fiber optic cables available for existing fibrous fibers available in a fibrous fiber, which are unused, “dark” fiber or a fibrous fiber.

But there are restrictions. Aston University David Webb, fiber optic probing technology, fiber-optic probing technology, and signal listening devices or you must install signal listening devices or listening devices along a cable.

AP Sensing, hundreds of meters away, but “usually not a few kilometers,” says. The company confirms its technology currently posted on some cable facilities in the North Sea, although it refuses to comment.

“People need a really early warning to determine what to do,” said Paul Heiden, Paul Heiden, also a Dutch company that develops fiber optic acoustic sensation systems.

Mr Heiden claims that the cable installed for monitoring the monitoring of maritime alone can be especially useful – it can be not with them, not with their vital port or telecommunications cable or telecommunications cable.

This can provide information about the operators in the area and provide information on a ship focused on a critical asset.

Optics11’s fiber optic listening technology can be placed on military submarines, Mr. Heiden adds, and he says that the company will soon begin to test the monitoring cable installed on the floor of the Baltic Sea.

Demand for fiber optical probing technology, Douglas Clague, Douglas Clague, a network test and measurement company: “We see the number of growing queries.”

Some cables damaged in the recent events were developed by Swedish cable company Hexatronic, Christian Priyess, Central Europe, the Middle East, Africa and Underwater cable cable work.

Acoustic feeling is a technology that is proposing Mr. Priyess to encounter more in the future. However, it is relatively small to protect a cable from provocation in terms of physical strength.

Today’s fiber optic cables are already folded with metal shells and says the fibers are welded. There are also the “armed wire”, thick metal cords, which are on the foreign parts of the cable, and in some cases there are two layers of this cord. “Many rocks and many fishing canal, you want to have a double armor on the UK,” he says Mr. Priyess.

However, if a ship will deliberately drag in a double armored cable, it will almost still damage, Mr. Priyess, the power of a collision or drawing.

Although it is possible to buried the cables in the seabed to protect the supplement, it can be prohibited at long distances and in depths below a few onzen meters.

“Cables give you a break all the time,” Lane Burdette, a scientific analytical teleography, telegraph market research firm. “During the year, cable deficiency continued in the last few years,” he said, “he said, despite the more questions in this period, despite more than 1,200 shortcomings.

Ms. Burdette also notes that if a cable is cut, telecommunication networks usually have significant majority, that is, the end users often do not often violate their services.

Again, the head of the NATO and the Head of the Global State Policy Institute, Thorsten Benner, co-founder and the Global State Policy Institute, NATO and the European Union are good. “

Although the cable sensing technology can be useful, it is due to the potential provocation and reaction to the potential provocation and reaction of the effective, coastal or military patrols to prevent damage. “The question says Benner.