System concept of an integrated RF-optical transceiver for deep space TT&C

This work reports on an integrated RF-optical TT&C subsystem that can achieve increased TM link capacity but with almost the same mass and less power consumption than a conventional X-band or even upcoming Ka-band TT&C subsystem. Overall system design aspects are discussed, including considerations on atmospheric turbulence that significantly influence the achievable TM rate. The paper focuses on on-board terminal aspects and outlines the design approach to an optical deep space link (O-DSL) that is based on state-of-the-art technology.