SES achieves bidirectional ground-to-space laser link for its MeoSphere network
In a press release published on the evening of 4 November 2026, the Luxembourg-based satellite operator presented this test, conducted as part of the MeoSphere Pathfinder 1 mission, as “a significant step” in the development of its next-generation network.
The group sees it as validation of a technology it describes as “critical” for its future high-capacity, secure and flexible connectivity services.
A bidirectional link between Rennes and a payload in orbit
During the demonstration, SES transmitted video messages from its Chief Executive Officer, Adel Al-Saleh, over a bidirectional optical link. The link connected Cailabs' optical ground station in Rennes to an SES payload onboard K2's Gravitas mission, aboard its Mega-class satellite platform.
The mission relied on a Condor optical terminal from Mynaric. SES states that it designed, developed and operated the optical mission, and developed the automation software that enabled the demonstration. Thales Alenia Space contributed to the assembly, integration, testing and operations of the system.
Extended testing to prepare the upcoming Pathfinder missions
According to the group, this demonstration strengthens its capability to design, develop and operate optical communication technologies intended to support the evolution of MeoSphere. The use of optics should enable the network to provide more flexible, more resilient and more secure data transport, while meeting growing demand for high-capacity connectivity.
“This success of Pathfinder 1 validates our vertically integrated and iterative approach to developing next-generation space capabilities,” said Carmel Ortiz, head of SES's MEO programmes.
With its partners, data was transferred “successfully and repeatedly” between space and ground “in an operational environment”.
The Pathfinder 1 team will continue its testing to extend the duration of the link and improve its speed and performance. This work will help guide future Pathfinder missions and advance the optical network technologies on which the MeoSphere constellation will rely.
