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We experimentally demonstrate a 1 Gbps impulse radio ultrawideband multi-hop system for wireless-over-fiber applications. The system consists of two 2 m air links and a 23 km single mode fiber based optical repeater.
Multilevel modulation formats are used as the enabling technology to obtain 120 Gbit/s per channel bit rates, and 240 Gbit/s when polarisation multiplexing is added. Using OTDM, this can be extended even further.
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