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20 Gbit/s wireless bridge at 220 GHz connecting two fiber-optic links

: Koenig, S.; Antes, J.; Lopez-Diaz, D.; Schmogrow, R.; Zwick, T.; Koos, C.; Freude, W.; Leuthold, J.; Kallfass, I.


Journal of optical communications and networking : JOCN 6 (2014), No.1, pp.54-61
ISSN: 1943-0620
ISSN: 1943-0639
Bundesministerium für Bildung und Forschung BMBF
Journal Article
Fraunhofer IAF ()

The feasibility of a wireless link at 220 GHz based on electronic upconversion and downconversion is demonstrated, connecting two optical links at data rates of up to 20 Gbit/s. We use either non-return-to-zero on-off keying with data rates up to 20 Gbit/s or electrical orthogonal frequency division multiplexing with data rates up to 9 Gbit/s. The wireless bridge connects the gateways of two spatially separated fiber sections, each with a length of up to 20 km.