According to Satnews on October 4, Thales Alenia Space Company announced that the field test of Switzerland successfully implemented the ground ultra-high-speed laser communication link through the atmosphere. This is an important step towards the next generation of geostationary communication satellites using optical feeders, doubled the capacity of currently available feeders links. By 2025, these solutions will play a key role in bridging the digital divide and providing high-speed connectivity for everyone. The goal is also to increase the capacity of satellite to reduce the number of satellites required to meet user needs, thereby limiting the impact on the environment.
Image from: Google
During the test activity, ETHZ, ONERA and Thales Alenia spaces demonstrated record transmission speeds of up to 1 Tbit/s in free space at a single wavelength and a distance of 53 kilometers. This achievement is to transmit data under extremely challenging conditions through the turbulent propagation channel between the Jungfrau Research Station in the Swiss Alps and the Zimmerwald Observatory near Bern . This test is an opportunity to test the combination of key technologies of optical links, including adaptive optics, multi-aperture technologies, and various modulation formats.
(Compiled by: Li Zimo)
