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Liaisons optiques faible bruit pour la distribution de références de fréquences micro-ondes

Bertrand Onillon 1
1 LAAS-MOST - Équipe Microondes et Opto-microondes pour Systèmes de Télécommunications
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : Low noise optical links for frequency distribution in microwave band Optical fibers are a serious alternative to electrical cables for the transmission of analogue signals. Onboard satellites, it enables a lower size and mass of the signal distribution harnesses towards the payload, all problems of electromagnetic compatibility are suppressed, and TeraHertzs applications will be allowed by the optical fibers broadband. Besides the fibers low losses are suitable for sharing a clock or synchronizing an antennas network on the ground. This thesis deals with optical links for high spectral purity analogue signal transmission in microwave band, optimized in terms of gain and noise. The DSB-CS modulation has been more particularly used. Endly the received signal synchronizes a low noise oscillator : the phase noise is thus improved and the signal level is higher
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Submitted on : Friday, February 2, 2007 - 11:00:32 AM
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  • HAL Id : tel-00128676, version 1


Bertrand Onillon. Liaisons optiques faible bruit pour la distribution de références de fréquences micro-ondes. Micro et nanotechnologies/Microélectronique. Université Paul Sabatier - Toulouse III, 2006. Français. ⟨tel-00128676⟩



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