Grander Canyons
this year, scientists at MBARI developed a new investigative technology, Geo-Sense, a new portable instrument that uses distributed acoustic sensing (DAS) technology for long-term, high-resolution monitoring of geological processes in canyons. DAS involves sending ultrashort pulses of laser light down a fiber-optic cable and analyzing millions of tiny reflections (backscatter) to essentially convert the cable into a motion sensor. The technology can track seafloor processes over long distances and in high resolution.In the latest issue of Marine Technology Reporter magazine, Celia Konowe talks to Dr Meg
Prysmian, Relativity Networks to Produce Next-Gen Cables for Data Centers
fiber technology, meeting the growing demands of data centers worldwide.In addition, Relativity Networks will provide connectors and hardware that ensure compatibility with existing fiber-optic interfaces.“Prysmian has long been a global champion in setting the standard in the field of fiber optics, and our cutting-edge solutions are always evolving to meet the demands of our customers. “This, combined with Relativity Networks’ technology, will enable both our companies to lead the global market for hollow-core fiber well into the future - a hugely significant area of focus
Turbidity Currents and Their Effects on Subsea Fibre Optic Cables
though not exclusively those offshore of large rivers such as the Congo Canyon in West Africa due to the increased sediment supply. Even flows that originate outside the canyons will often be ‘captured’ by them as they descend the continental slope.Turbidity currents can be a key risk for fiber optic cables through three main mechanisms. Firstly, close to their source, turbidity currents are erosive. As they move across the seabed, the currents dig into it and entrain more sediment into the flow. This can expose a buried cable to damage from other sources or from the other mechanisms by which
Underwater Sabotage: A Baltic Sea Timeline
that the C-Lion1 cable was damaged, after it was completely severed in November and December of 2024.The European Commission said it will spend almost a billion euros to boost surveillance of cables and establish a fleet of emergency repair vessels.JANUARY 2025: SWEDEN-LATVIA TELECOM CABLEAn undersea fiber optic cable connecting the west coast of Latvia and the Swedish island of Gotland malfunctioned on January 26, triggering an investigation by NATO and local police.Sweden later seized and boarded the Maltese-flagged bulk vessel Vezhen on suspicion that it had caused the damage in an act of gross sabotage
Underwater Surveillance Milestone: Novacavi’s Hybrid Cable Passes Successful Test
Novacavi recently supported the successful deep mine shaft test of Image Soft’s UNWAS – a special underwater surveillance system - with one of its special fiber optic cables. With its hybrid water-blocked configuration, this underwater cable solution acted as a strategic component of the specialized system designed to detect and warn of any potential actions against sensitive critical infrastructure such as pipelines, subsea cables, ports, and harbors. “We really appreciate the durable construction and high quality of the Novacavi’s cable, which allowed our divers to take the
Cables Hold the Key to Quantum Communications
STL Consulting, highlighted quantum communications as an important development in subsea technology. It may not happen in 2025 as the technology is still in its infancy, but it could be mainstream in the next decade, Gallaudet says.Today, sensitive data is typically encrypted and then sent across fiber optic cables together with digital “keys” that are needed to encrypt and decrypt the information. However, hackers can access the data (the string of 0 and 1 bits used by traditional computers) without leaving a trace.In contrast, quantum communication takes advantage of the laws of quantum
Exail Debuts Octans 9 Gyrocompass
System (AHRS), the latest model in its navigation solutions range. Building on the previous generations, Octans 9 offers several upgrades to enhance operational performance across applications such as dynamic positioning, vessel navigation, and offshore platform stabilization.Leveraging Exail's Fiber Optic Gyroscope (FOG) technology, Octans 9 provides precise measurements with a heading accuracy of 0.1° secant latitude and heave measurement accuracy of 5%. Resilient to GNSS outages, the system secures uninterrupted operations in challenging conditions.Upgrades include:A more robust and compact
BIRNS, JOWO Partner
BIRNS, Inc., a leader in the design and manufacturing of high performance subsea connectors, custom cable assemblies and lighting systems, has announced an Authorized Dealer partnership with JOWO Systemtechnik AG. Based in Germany, JOWO specializes in electrical and fiber optic connectors and systems for marine and underwater applications, offshore and defense technology, broadcast solutions, aerospace engineering and hazardous areas. With the new agreement, JOWO will have exclusive representation of BIRNS subsea interconnect products and penetrator assemblies in Germany and South Korea.“JOWO
Subsea Cables "Torn Apart" by External Force, says Elisa
damaged the Finnish-Estonian Estlink 2 power line and four telecoms cables on Christmas Day by dragging its anchor across the seabed."The current suspicion is that the external force has been caused by an anchor," Jaakko Wallenius, Chief Security Officer at Elisa, which owns two of the four fiber optic lines, said on Monday. The cables, running between Finland and Estonia, are steel-reinforced with a diameter of just over two centimetres, with several layers of insulation protecting the fibres within.The Eagle S vessel, which is registered in the Cook Islands, was brought to a bay near Finland'
February 2025
