The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We present the first prototype of a real-time bandwidth-variable coherent muxponder aggregating multiple 10GigE clients onto a symbol-rate-variable PDM-QPSK optical signal. This technology enables optical transport with power consumption linearly proportional to the actual requested traffic.
We experimentally show a real-time coherent receiver operated in burst mode. Enabled by special headers, 28-Gb/s PDM-QPSK packets with random states of polarizations are successfully demodulated, and the sensitivity to optical noise is reported.
A fully reprogrammable coherent receiver using an integrated coherent front end, four high speed ADCs and powerful FPGAs is reported and tested against optical noise level, chromatic dispersion and PMD for various equalizer filter length.
We achieve full real-time operation of 28 Gb/s burst-mode PDM-QPSK coherent receiver capable of handling packet-to-packet jitter and polarization wandering. The receiver is demonstrated with subwavelength switching in a four-node WDM optical packet network testbed.
To enable 40Gb/s data transmission over optical fibres using QPSK modulation, the first step of the receiver signal-processing pipeline is a 128-tap FIR filter that compensates the chromatic dispersion due to the medium. We present an implementation of this FIR filter in the largest Stratix-IV GX device that is able to process 20 giga-samples per second, where each sample is a complex number with...
Seven numerical models which simulate waves and currents in the surf-zone are tested for the case of a reduced-scale detached breakwater subjected to the action of regular waves with normal incidence. The computed wave heights, water levels and velocities are compared with measurements collected in an experimental wave basin. The wave height decay in the surf-zone is predicted reasonably well. ...
SISYPHE was developed by five french institutes. This system allows the bed evolutions of seas, estuaries and rivers to be simulated, including the effects of waves, currents and sediment transport, as well as their interactions.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.