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| Diouf, Cherif; Quintard, Veronique; Ghisa, Laura; Guegan, Mikael; Perennou, Andre; Gautier, Laurent; Tardivel, Morgan; Barbot, Stephane; Dutreuil, Vincent; Colas, Florent. |
| A power-over-fiber (PoF) and communication system for extending a cabled seafloor observatory is demonstrated in this contribution. The system allows the cabled seafloor observatory to be linked, through a single optical fiber, to a sensor node located 8 km away. The PoF system is based on an optical architecture in which power and data propagate simultaneously on the same single-mode fiber. The Raman scattering effect is exploited to amplify the optical data signals and leads to the minimization of the sensor node power consumption. Versatile low power electronic interfaces have been developed to ensure compatibility with a wide range of marine sensors. A low-consumption field-programmable gate array and an energy-efficient microcontroller are used to... |
| Tipo: Text |
Palavras-chave: Low power embedded systems; Power-over-fiber (PoF); Raman amplification; Remote sensing; Seafloor observatories. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00465/57684/59933.pdf |
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| Quemener, Loic; Repecaud, Michel; Jegou, Paul; Aoustin, Yannick; Retho, Michael; Barbot, Stephane; Gautier, Laurent; Podeur, Christian; Pichavant, Pascal. |
| La validité du concept de station de mesure haute-fréquence Marel a été vérifié par le déploiement d’un réseau constitué de stations de type axisymétrique (Réseau Baie de Seine, Bouée Iroise en rade de Brest). Le mouillage et le comportement de ces bouées en terme d’accessibilité et de maintenance est un handicap pour l’extension vers les zones plus exposées du large. La bouée MOLIT (Mer Ouverte LITtorale) constitue une réponse technique et financière. |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00628/73990/73327.pdf |
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