Free-Space Laser Communication Terminal for LEO Constellation

Abstract

This paper presents free-space laser communication (FSO lasercom) terminal for LEO constellation. The optical scheme is shown, the operation principle of the terminal and its acquisition, pointing and tracking (APT) system is presented. The calculation of the transmitting channel (TX channel) optical link budget with regard to the jitter effect is carried out. The maximal communication link distance of LEO constellation is 4000 km and the data rate is 10 Gbps.