Title
End-to-End Performance Analysis of Analog Coherent Optical Satellite Feeder Links
Author
Korevaar, C.W.
Boschma, J.J.
den Breeje, R.
Ebert, J.
Publication year
2022
Abstract
Optical feeder links (OFLs) benefit from the vast amount of bandwidth available in the THz-regime of the electro-magnetic spectrum, and could enable future terabit-per-second satellite systems. This study assesses the end-to-end performance of analog coherent OFLs for digital video broadcasting (DVB) applications, employing phase modulation (PM) and double-sideband suppressed carrier (DSB-SC). Though both PM and DSB-SC suffer from non-linear distortion, we show that with DSB-SC the optical modulation index can be reduced such that the modulator is operated in the linear regime, without sacrificing the signal-to-noise ratio (SNR). Using end-to-end simulations of a geostationary orbit (GEO) feeder link the Es/N0 penalty due to the optical feeder link (OFL) is determined. With typical system parameters and link losses the OFL-induced penalty remains below 1 dB, even under moderate turbulence conditions and APSK32 (8/9). As a result, the usual suspects, the RF traveling-wave tube amplifier (TWTA) and the RF user channel, remain the key limiting factors for the end-to-end performance.
Subject
Communication satellites
Computer graphics
Digital video broadcasting (DVB)
Geostationary satellites
Modulation
Multimedia systems
Optical signal processing
Satellite links
Signal to noise ratio
Coherent optical
Double side-band suppressed carriers
Electromagnetics
End-to-end performance analysis
Feeder link
Modulation side-bands
Optical satellites
Orbits
High Tech Systems & Materials
Industrial Innovation
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DOI
https://doi.org/10.1109/icsos53063.2022.9749719
TNO identifier
968427
Publisher
Institute of Electrical and Electronics Engineers IEEE, Piscataway, NJ, USA
ISBN
9781665434393
Source
IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022, 28-31 March 2022, Kyoto City, Japan, 267-274
Document type
conference paper