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Real-time video streaming using ultra-wideband(UWB)technology is experimentally demonstrated along long-reach passive optical networks(LR-PONs)with different wired and wireless reaches.Experimental tests using external and direct modulation with UWB wireless radiation in the 10-and 60-GHz bands are performed.An ultra-bendable fiber is also considered for a last-mile distribution.The video quality at the output of the optical fiber infrastructure of the LR-PON is assessed using the error vector magnitude(EVM),and the link quality indicator(LQI)is used as a figure of merit after wireless radiation.An EVM below–17 dB is achieved for both externally and directly modulated LR-PONs comprising up to 125 km of optical fiber.EVM improvement is observed for longer LR-PONs when directly modulated lasers(DMLs)are used because of the amplitude gain provided by the combined effect of dispersion and DML’s chirp.Compared with optical back-to-back operation,the LQI level degrades to the maximum around 20%for LR-PONs ranging between 75 and 125 km of fiber reach and with a wireless coverage of 2 m in the 10-GHz UWB band.The same level of LQI degradation is observed using the 60-GHz UWB band with a LR-PON integrating 101 km of access network,a last-mile distribution using ultra-bendable fiber,and a 5.2-m wireless link.
Real-time video streaming using ultra-wideband (UWB) technology is experimentally demonstrated here along long-reach passive optical networks (LR-PONs) with different wired and wireless reaches. Experimental ideas using external and direct modulation with UWB wireless radiation in the 10- and 60-GHz bands are performed. An ultra-bendable fiber is also considered for a last-mile distribution. The video quality at the output of the optical fiber infrastructure of the LR-PON is assessed using the error vector magnitude (EVM), and the link quality indicator (LQI) is used as a figure of merit after wireless radiation. An EVM below-17 dB is achieved for both externally and directly modulated LR-PONs up to 125 km of optical fiber. longer LR-PONs when used for the amplitude gain provided by the combined effect of dispersion and DML’s chirp. Compared with optical back-to-back operation, the LQI level degrades to the maximum aro und 20% for LR-PONs ranging between 75 and 125 km of fiber reach and with a wireless coverage of 2 m in the 10-GHz UWB band. The same level of LQI degradation is observed using the 60-GHz UWB band with a LR -PON integrating 101 km of access network, a last-mile distribution using ultra-bendable fiber, and a 5.2-m wireless link.