首次飞机与地球静止轨道卫星之间的千兆激光链路
World-first gigabit laser link between aircraft and geostationary satellite

原始链接: https://www.esa.int/Applications/Connectivity_and_Secure_Communications/World-first_gigabit-per-second_laser_link_between_aircraft_and_geostationary_satellite

## 高速连接的激光通信突破 由欧空局、空中客车、TNO和TESAT进行的一项成功测试,展示了飞机与地球静止轨道卫星之间的高速激光通信,为移动无缝连接铺平了道路。在法国的飞行中,空中客车的UltraAir终端以每秒2.6千兆比特的速度传输数据——足以在几秒钟内下载高清电影——到36,000公里上方的Alphasat卫星。 这项技术为拥挤的传统无线电频率提供了一种安全高效的替代方案。激光束由于其聚焦特性,提供更大的带宽和安全性。 该项目得到欧空局ScyLight计划的支持,克服了与保持快速移动飞机的精度以及大气干扰相关的重大挑战。这项突破有望为飞机、船舶和偏远地区的车辆乘客提供可靠的高速互联网,增强欧洲在安全可靠的数据传输方面的能力。

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原文
Applications

26/02/2026 2168 views 28 likes

Faster, more secure connections from space could one day make broadband on planes, ships and even remote roads as easy as turning on a light. The European Space Agency (ESA), Airbus Defence and Space, the Netherlands Organisation for Applied Scientific Research (TNO) and German payload manufacturer TESAT (as subcontractor) successfully connected an aircraft to a geostationary satellite using laser communications, bringing people closer to seamless, high‑speed connections in daily life.

During test flights in Nimes, France, Airbus’ UltraAir laser terminal maintained an error‑free connection while transmitting data at 2,6 gigabits per second for several minutes. At such speeds, downloading an HD film takes only seconds.

Laser communications offer a powerful alternative at a time when space is becoming crowded and radio frequencies increasingly scarce. Because laser beams spread far less than radio waves, they provide more secure links and can carry much more information.

Airbus' UltraAir laser terminal inside the aircraft

In this demonstration, the aircraft’s terminal stayed connected to the Alphasat TDP‑1 satellite 36 000 km above Earth. Achieving such accuracy with a fast‑moving aircraft, while simultaneously dealing with clouds and atmospheric differences, is a major challenge, yet the system provided reliable connectivity throughout the test.

These developments entail a future where travellers could enjoy reliable, high‑speed internet while flying, and where people on ships or in vehicles crossing remote regions can stay connected without interruption. Europe’s investment in laser‑based communications is laying the foundations for everyday technologies that depend on strong and dependable links.

Airbus' UltraAir laser terminal seen from the outside of the aircraft

The UltraAir laser terminal was developed through ESA’s programme for Optical and Quantum Communications – ScyLight – which supports research, development and evolution of optical and quantum communication. ScyLight belongs to ESA’s larger Advanced Research in Telecommunications Systems (ARTES) programme. As part of ScyLight, the project has also been supported by the Netherlands Space Office (NSO) and the German Aerospace Agency (DLR).

“This achievement demonstrates how optical communications can transform secure connectivity for our Member States. Particularly by working to resolve the technical challenges that come with establishing fast laser communications, capable of evading interference and detection in demanding conditions,” said Laurent Jaffart, Director of ESA Resilience, Navigation and Connectivity. “Collaboration drives innovation, and this milestone will strategically deliver benefits to future missions, where speed and security of data transmission is paramount. For Europe and beyond.” 

“This breakthrough proves that our industry strengthens Europe’s security and its autonomy by leading strategic technology in the field of secure laser communications,” said Kees Buijsrogge, Director of Space at TNO.

“Establishing laser links between moving targets at this distance is technically very challenging. Continuous movements, platform vibrations and atmospheric disturbances require extreme precision,” said François Lombard, Head of Connected Intelligence at Airbus Defence and Space. “This milestone is a further development of our long successful laser communication history; it opens the door to a new era of laser satellite communications to meet defence and commercial needs in the next decades.”

“Optical communications between airborne users and satellite networks, like ESA’s High-thRoughput Optical Network (HydRON), are high on ESA’s agenda,” said Harald Hauschildt, Head of ESA’s Optical and Quantum Communication Office. “High-data rate, low-latency links that connect High-Altitude Pseudo Satellites (HAPS) and aircraft are equally demanded for commercial and resilience driven applications.”

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