Transparent Optical Intersatellite Link Using Double-Sideband Modulation and Homodyne Reception

Autor: Klaus Pribil, Klaus H. Kudielka
Rok vydání: 2002
Předmět:
Zdroj: AEU - International Journal of Electronics and Communications. 56:254-260
ISSN: 1434-8411
DOI: 10.1078/1434-8411-54100105
Popis: Summary A coherent, transparent optical communication system has been developed for free-space lasercomm terminals. The laser synchronisation scheme has been chosen such that the transmission of either an ensemble of subcarrier-modulated signals or of a binary baseband signal is equally possible. By using double-sideband modulation and an average-power-limited booster amplifier, the link capacity for subcarrier-multiplexed transmission approaches that of a homodyne PSK transmission system to within 0.5 dB.
Databáze: OpenAIRE