The two partners have announced plans to explore linking two optical communication networks that send light signals between satellites in orbit around Earth. Connecting the networks will pave the way for much faster data-intense transmission and more secure and reliable networks, boosting everything from internet access to space exploration.
The agreement involves linking two optical communication networks: ESA’s High Throughput Optical Network (HydRON) demonstration system and Japan’s LAIDEN network. HydRON aims to demonstrate the world’s first optical multi-orbit transport network in space, delivering internet speeds of terabits per second – thousands of times faster than many of today’s conventional connections. It will help to bridge digital divides and enable new possibilities in global communications.
Meanwhile the LAIDEN project overseen by Japan’s New Energy and Industrial Technology Development Organisation foresees launching a commercial satellite into a geostationary orbit and offering optical data relay services as part of this in-orbit demonstration.
Building a multi-layer network
The partnership will create a network that connects different orbital layers – including geostationary orbit, medium Earth orbit and low Earth orbit satellites – as well as ground stations. This comprehensive approach aims to build more resilient communication networks that could better serve both space and Earth-based applications.
The collaboration will progress through three key phases, starting with technical feasibility assessment, moving through the development of joint test protocols, and culminating in full system validation. This methodical approach ensures that the resulting network meets the highest standards of reliability and performance.
ESA’s HydRON project sits within the ScyLight optical and quantum communications strategic programme line, which is part of ESA’s programme of Advanced Research in Telecommunications Systems to support the space industry in Europe and Canada to develop leading technologies.
“This partnership exemplifies ESA’s commitment to fostering international collaboration in developing and demonstrating optical communications,” said Harald Hauschildt, ESA’s Head of Optical and Quantum Communications Office. “The project showcases how ESA Member States are driving, developing and demonstrating world-class and recognised optical communications technologies to the benefit of our industry and international partners.”
“This memorandum of intent with ESA represents a crucial step towards realising a truly global optical communication network,” said Koichiro Matsufuji, Co-Chief Executive Officer at Space Compass. “By integrating Japan’s LAIDEN project with ESA’s HydRON system, we are advancing the technical feasibility of high-speed, high-capacity data relay between multiple orbital layers. This partnership also aligns with our vision of a space-integrated computing network, where innovative communication and computing technologies converge to create a more connected and efficient space infrastructure.”