York Space Systems Achieves LEO-LEO Laser Link Between Vendors for PWSA

Jan. 9, 2025

York Space Systems (York),  has successfully completed the low Earth orbit (LEO) inter-vendor laser communication link for the Proliferated Warfighter Space Architecture (PWSA). This groundbreaking achievement connected a Tranche 0 Transport satellite built by York with a Tranche 0 Tracking satellite built by SpaceX, representing a significant milestone in space-based communication.

This demonstration realizes another important step in Space Development Agency's (SDA) achieving its vision of an extensible and proliferated constellation built by multiple vendors to a common interface standard. Successfully closing this laser communication link between vendors and across two network layers and orbital inclinations validates SDA's decision to adopt a standardized Optical Communication Terminal (OCT) protocol to enhance interoperability. By enabling seamless communication across platforms, this approach ensures interoperability, enhances a competitive marketplace and fosters innovation across the entire space industry. 

"This breakthrough reflects York's leadership in advancing interoperable technologies that ensure resilience and innovation in space networks," said Dirk Wallinger, CEO of York. "Achieving the first inter-vendor, inter-layer laser link demonstrates the tangible value of open standards and collaborative efforts in rapidly achieving an integrated space architecture. We are proud to support SDA's vision for an interconnected space architecture for the warfighters"

Laser communication links, which enable high-speed, secure data transmission, are an enabling capability for next-generation satellite networks. By successfully demonstrating the first LEO-to-LEO laser communication link between satellites from different vendors, York and SDA have taken a significant step toward realizing the vision of a unified, multi-vendor satellite communications network.

This operational milestone reaffirms York's role in leading the deployment of state of the art space technologies while enhancing space industry collaboration to push the boundaries of space innovation.