Andrea Farkasvölgyi and István Frigyes
Optical transfer in space communication
This paper presents the possibilities of Free-space optical connection (FSO) in space communication in case of satellite-to-spacecraft or satellite-to-satellite link. It summerizes the advantages and disadvantages of optical transmissions in case of near-earth and deep space region. We present the most significant problems during FSO link application and introduce some techniques to eliminate the drawbacks. In this paper, we introduce the use of multi-channel FSO system, which is the most appropriate in order to maximize channel parameters with minimizing the transmission error. It compares available maximum channel parameters of near future space missions. Under special conditions in satellite-earth connection, the usage of the optical link may become very uncertain, because of the strong turbulent medium. We describe conditions under which the optical link can be applied in satellite communication and when it is necessary to effectively modify the optical connection, This article discusses the application of multichannel or more precise diversity systems, which we recommend for space communication.
Please cite this paper the following way:
Andrea Farkasvölgyi and István Frigyes, “Optical transfer in space communication”, Infocommunications Journal, Vol. X, No 3, September 2018, pp. 9-13. DOI: 10.36244/ICJ.2018.3.2