Centre for Nanoscience
and Nanotechnology



 Opto-RF centre

The Opto-RF centre gathers a pool of expertise on the characterization and optical or optoelectronics instrumentation, in support of research activities at C2N. Moreover, the centre participates in joint projects with outside partners. Within the centre, expertise in ultrafast optoelectronics measurements is gathered within the DESCARTES platform.

  The DESCARTES platform for next generations of ICT

The ever-increasing need of information transmission capacity for next generations of ICT leads to cope with characterization of new devices oriented towards a high-speed signal-processing.


DESCARTES is an acronym for “Device Experiments and Signal Characterizations for Advanced Research in optical Telecommunication Systems”. The platform contributes mainly to demonstrate functional aspects of new telecommunication devices. It gathers some high-frequency equipment that allows to achieve a specific own set-up in each project. Thus the platform configuration has been flexible both in the transmission part and in the reception part in order to be able to be adapted to numerous signal formats or to different clock frequencies, despite the sensitive settings on each broadband access. The platform meets the demands both from industrial and academic laboratories. It also plays a wide transverse role inside C2N by supporting other requirements around more physics parameter measurements in the high frequency area.



Tel : (33) 1 69 63 61 51


Tel : (33) 1 69 63 60 02


Tel : (33) 1 69 63 61 83

  Department of Photonics

The pool of expertise is part of the Department of Photonics.


Characterization on-going of a device through the probes driven and analyzed by the equipment

  Description of the high data rate analysis

The equipment makes the transmission data rate available up to 100Gbit/s in the electrical NRZ area and up to 170Gbit/s carried by one single wavelength in the optical IM-RZ format. The optical PSK format that is the basis element to access to complex modulations can be analysed too. WDM can be achieved in the whole C-Band. The analysis of the device behaviour is performed through direct BER measurements and it is complemented thanks to generic equipment (streak camera, time correlator, 50GHz spectrum analyser, 60GHz scope, ...).