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We present a transparent all-optical wireless architecture for full-duplex two-dimensional beam-steered communication system with wavelength reuse. We compare the performances of symmetric (down 10 Gbit/s / up 10 Gbit/s) and asymmetric (down 10 Gbit/s / up 2.5 Gbit/s) systems through experimental evaluation.
The actual use of power budgets in a PON typically varies widely. Utilizing 4-PAM modulation for ONUs that have high power margins can increase network capacity utilization without investing in expensive optics. We demonstrate that the capacity can increase 79%.
We propose a novel spectrum-efficient indoor optical wireless solution providing multi-Gigabits-per-second with passive diffractive beam-steering technique and discrete multitone modulation. Diffracted link performance of 36.7 Gbps over more than 2.5 m is reported.
Recent activity to achieve multi-gigabit transmission over 1 mm core diameter graded-index and step-index plastic optical fibers for distances up to 50 meters is reported in this paper. By employing a simple intensity-modulated direct-detection system with pulse amplitude or digital multi-tone modulation techniques, low-cost transceivers and easy to install large-core POFs, it is demonstrated that...
Using simple intensity-modulation direct-detection systems, low-cost transceivers and easy-to-install 1-mm core diameter plastic fibers, recent activities on multigigabit baseband and ultra-wideband radio transmission over 50-m link are reported.
We report a novel low-cost in-home broadcasting system using a 1-mm core graded-index plastic optical fibre split network reaching up to 35 meters. We demonstrated broadcasting 2.5 Gbit/s data to four end-users employing discrete multi-tone modulation.
The first multi-standard transmission consisting of 6 Gbit/s DMT baseband and 200 Mbit/s MB-OFDM UWB radio signals over 100m perfluorinated graded-index plastic optical fibre is demonstrated. Transmission performance indicates BER <; 10-5 and EVM <; -22dB respectively.
We propose a novel generation technique for IR-UWB signal employing the weighted sum of modified doublets. We experimentally demonstrate a DSP-based BER measurement of 2 Gbps IR-UWB over 100m PF GI-POF for in-building network applications.
We report multi-Gbit/s capacity in 1-mm diameter graded index plastic optical fiber exploiting low-cost eye safe compliant transceivers. Transmission rates between 5.3 and 7.6 Gbit/s are achieved for lengths between 10 and 50 m using DMT.
We propose novel generation technique of IR-UWB pulse by linearly combining two monocycles using different pulse shapes. We experimentally demonstrate DSP based BER measurement of 2 Gbps IR-UWB over multimode fiber for in-building networks application.
We report record transmission systems of ultra-wideband MB-OFDM signal over 50-m 900-mum core graded-index PMMA POF using low-cost VCSEL at 667 nm. A gross bit rate of 2.1 Gbit/s is achieved with BER < 10-3.
We report record transmission systems over 50 metres of 900-µm core diameter graded-index POF using a low-cost VCSEL at 667 nm. A net bit rate of 4 Gbit/s is achieved with BER ≪ 10−3.
Spectral-efficient 40-Gb/s discrete multitone transmission over 100 m of graded-index plastic optical fiber is experimentally demonstrated by intensity-modulation of a 10-GHz DFB-laser (1302 nm) and direct-detection with a 25-mum large diameter photodetector.
WDM transmission of eight 10-Gb/s signals in a metro ring with eight cascaded Linear Optical Amplifiers shows Q-factors better than 17.6 dB (BER < 2·10-14). A system with three add/drop nodes is demonstrated. Dynamic switching of channels does not affect transmission quality of the remaining channels.
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