Kepler Partners with TESAT and Airbus to Develop Optical Communications Network for HydRON

Kepler Partners with TESAT and Airbus to Develop Optical Communications Network for HydRON

Kepler Communications has entered into an agreement with TESAT-Spacecom and Airbus Defence and Space to develop a high bandwidth optical communications network in low Earth orbit (LEO) to address emerging opportunities such as the European Space Agency’s (ESA) High Throughput Optical Network (HydRON) program. This marks a significant milestone toward the development of terabit-class optical networking in space.

Led by Kepler, the companies are collaborating to deliver real-time optical communications to the market, leveraging the strengths of each entity to provide an innovative solution for key opportunities such as HydRON. The project will demonstrate the world’s first operational optical multi-orbit transport network, enhancing the capabilities of spaceborne and terrestrial networks.

Under the agreement, Kepler is spearheading the effort, delivering expertise in spacecraft constellation design, manufacturing, and operation, building on the technologies within its commercial space segment and existing ground segment. TESAT is contributing expertise in space optical and network payload development, while Airbus is leveraging its expertise in optical communication by contributing operational and system engineering know-how as well as access to optical ground stations to the project.

“Kepler’s mission to build the Internet for Space is well-positioned to support HydRON’s objective to demonstrate ‘Fibre in the sky,’ extending Internet connectivity to space,” said Mina Mitry, chief executive officer and co-founder of Kepler. “This collaboration enables the development of terabit-per-second data relay in space, with a state-of-the-art optical network architecture that gives European and Canadian forces secure access to spacecraft data with sub-second latency.”

Kepler is leveraging technology currently being developed for their LEO optical data relay network, The Kepler Network. The company launched its first two optical pathfinder satellites in late 2023 and expects its first full tranche of optical satellites to be launched and operational by 2025, providing services to both commercial and government partners.

TESAT is a technology and market leader in laser communications for space. In a dedicated space factory, a production line for Scalable Optical Terminals (SCOT) is established and delivers flight units of the SCOT series continuously. Since 2016, the company has had operational terminals in orbit, covering distances up to 45,000 km.

“Joining forces with Kepler and Airbus accelerates the advancement and adaptation of optical communications, setting the stage for a new era in space communication by providing unprecedented data throughput and reliability,” stated Thomas Reinartz, CEO at TESAT-Spacecom.

Pioneering the advancement of space for more than 50 years, Airbus is renowned for its range of trusted solutions for customers around the world that bring the benefits of space down to Earth.

“Our collaboration with Kepler and TESAT on the HydRON opportunity exemplifies our commitment to innovation and our role in shaping the future of European and global telecommunications, ” said Philippe Pham, Senior Vice President of Telecoms & Navigation Systems at Airbus. “Our team is proud to develop a new generation of optical communications technology in space.”

The partnership is dedicated to delivering a comprehensive and compelling proposal to the ESA, driving forward the evolution of optical space and ground network capabilities.

Click here to learn more about ESA's HydRON Project.

Click here to learn about Laser Communication Terminals from TESAT-Spacecom.

Publisher: SatNow
Tags:-  LEOGround

GNSS Constellations - A list of all GNSS satellites by constellations


Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019


Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017


Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018


Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014


Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013