100 Gb/s end-to-end broadband optical solutions are attractive to cope with the increasing demand for capacity. Polarization-division-multiplexed (PDM) quaternary-phase-shift-keying (QPSK) paired with coherent detection has been found to be promising for upgrading optical legacy systems based on 50 GHz wavelength slots thanks to its high spectral efficiency… (More)
Eighty-one channels spaced by 50GHz and modulated at 40Gbit/s are transmitted over 11520km, thanks to RZ PDM-BPSK modulation, coherent detection, and a new large effective area fibre. Introduction Within a given amplifier bandwidth, the capacity of an optical system is simply proportional to the information spectral density (ISD). The ISD of commercial… (More)
We investigate the potential of 100Gb/s polarization division multiplexed (PDM-) quadrature phase shift keying (QPSK) paired with coherent detection to enable the future capacity upgrade of current networks designed for 10Gb/s non-return to zero (NRZ) on-off keying data. We experimentally assess the tolerance to nonlinear effects of such a solution over… (More)
In this paper we present two examples of combining fluorescent nanoparticles with photonic materials. First, we present the results on new compound: nanodiamonds and silk. Second, we report on ZnO fluorescence, with ZnO nanoparticles obtained by Zn-ion implantation in silica.
In this paper we describe single stage and two-stage MMIC power amplifier data at Ka-band. An extremely high P1dB power density of 700 mW/mm and 571 mW/mm were measured for the 1-stage and 2-stage GaAs HEMT MMIC amplifiers respectively. When biased for optimal IP3, 4.5 W/mm and 2.1 W/mm were achieved respectively. The performance of the latter 2-stage MMIC… (More)