The RePowerSiC project took a significant step onto the global stage with its recent participation at the 7ᵗʰ Optical Wireless and Fiber Power Transmission Conference in Japan (OWPT 2025)—one of the most prominent international events dedicated to optical and photonic power transmission. Held from April 21 to 25 at PACIFICO Yokohama, the congress brought together global leaders in photonics research and confirmed its role as a key event in the field. This year’s edition stood out for its broad thematic scope, ranging from lasers to agricultural photonics. Our project coordinator, Antonio García Loureiro, together with our postdoctoral researcher, Javier Fernández Lozano, presented the latest developments in our groundbreaking work on high-power energy transmission in space, sparking interest and fostering valuable new international connections. 

The presentation introduced RePowerSiC's innovative approach to space-based energy transmission, centered on the development of ultra-efficient Optical Power Converters (OPCs) based on silicon carbide (SiC) materials. These OPCs are designed to deliver kilowatts of power per square centimeter over extremely long distances, with efficiencies exceeding 80%. Thanks to their radiation resistance and high thermal conductivity, SiC-based OPCs dramatically reduce energy losses. Early testing shows that this technology could handle 10 times more power than current solutions—paving the way for an expanded use of High Power Laser Transmission (HPLT) in space missions. This breakthrough could open new possibilities for powering future space missions and expanding the use of laser-based energy systems beyond today’s limitations. 

 Fueled by this experience, the OWPT Conference allowed us to showcase our potential and lay the groundwork for future developments. Let’s keep pushing the boundaries of space energy transmission while strengthening scientific ties on an international level.