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Publications (13)
In this article we discuss different technology alternatives for small cell backhaul, and we present high-frequency microwave technology as a very interesting alternative for wireless backhauling of small cells. In fact, we demonstrate that high-frequency microwave technology can be used for NLOS wireless backhauling of small cells, which opens up...
Transmission of 86 dense wavelength division multiplexed channels on a 50-GHz grid, carrying 112-Gb/s radio-frequency-assisted dual-channel dual-polarization 16-QAM (8.6-Tb/s), was successfully demonstrated in a straight-line transmission link. Required bit-error rate before forward error correction was obtained after 1200 km of ultralow-loss G.652...
Carrier phase estimation using information from multiple subchannels and orthogonal polarization channels is proposed and experimentally verified. The concept is evaluated with a 112 Gb/s dual-channel DP-16-QAM system, but may find applications in next generation Terabit systems utilizing superchannels and containing densely packed subchannels orig...
The concept of joint-polarization phase estimation is experimentally demonstrated in a dual-polarization 7-Gbaud 16-QAM system. Performance improvement using a distributed feedback laser with 2-MHz linewidth as well as narrow linewidth lasers are presented.
An opto-electric implementation of an optical spectrum inverter is proposed and experimentally demonstrated in a 561 km transmission link. 3dB increase in span launch power was enabled by the inverter for a 112 Gbit/s DP-16QAM channel and error free operation (BER
The applicability of optical phase noise compensation in the analog electrical domain is presented and experimentally investigated. Frequency noise power density can be reduced two orders of magnitude, enabling the use of low-cost DFB lasers for advanced modulation formats like 16-QAM.
