China is working on the first laser-powered submarine – La Nouvelle Tribune

At a time when the world is witnessing growing geopolitical tensions, illustrated by conflicts in Ukraine and Gaza, as well as tensions between UNITED STATES And China, the arms race is taking a technologically advanced turn. In this context, China is taking a giant step forward by developing a laser-powered submarine that could revolutionize the stealth and speed of People’s Liberation Army submarines. (PLA).

Researchers at Harbin Engineering University have developed a laser-based propulsion method, according to a report in the South China Morning Post. This technology is about to become a reality thanks to significant innovations that circumvent the technical problems faced by Japanese pioneers more than twenty years ago. Lasers generate plasma in the water, creating a detonation wave that propels the submarine or weapon involved.

Teacher Ge Yang and his team at Harbin University have succeeded in improving the efficiency of these laser motors. They use a coating of optical fibers that helps guide the detonation wave, producing thrust comparable to that of a commercial jet engine: 70,000 newtons of force from just two megawatts of laser power.

Perhaps the most innovative aspect of this technology is the creation of cavitation bubbles around the submarine, significantly reducing water resistance. This phenomenon, known as supercavitation, theoretically allows the ship to move underwater at supersonic speeds while remaining silent due to the lack of a mechanical propulsion system.

The implications of this technology extend beyond submarines. Indeed, the same principle can be applied to various underwater missiles such as missiles and torpedoes, thereby enhancing the capabilities of China’s naval arsenal.

However, despite these promising advances, a number of challenges remain. Researchers still have to improve the heat dissipation of optical fibers and the durability of equipment in high-salinity environments before this technology can be put into use. Washington’s continued monitoring of these developments shows growing concern about China’s developing military-technological capabilities, especially through its watchful eye on Harbin University.

These advances in laser propulsion technology illustrate the changing dynamics of modern naval warfare and place China at the forefront of undersea defense innovation in an increasingly tense international climate.