English | Español | 30/07/2010

 

• Technologies
• Integrated Chips
• Radio-Fibre Solutions
• Spectral Monitoring
• Radio-Fibre links
• Wireless networks
• WiMAX Antenna Systems
• Optical interconnects
• Integrated devices

Radio-fiber technology (microwave photonics) allows the generation, transmission and processing of radiofrequency signals directly in the optical domain, making the most of the inherent advantages brought by the photonic technology and allowing, besides, to deal with technological solutions whose specifications are unreachable by means of using conventional electronic technology for certain kind of applications.

Inside this area, the following applications are covered:

• Radiofrequency signal distribution through optical fiber up to very high frequencies (tens or even hundreds of GHz) with extremely low signal degrading (regarding losses, distortion, non-linearities, etc.)
  
• Radiofrequency signal generation in high frequencies (millimetric waves), as local oscillator reference as for data modulation, again up to frequencies of tens and hundreds of GHz with high spectral purity, high signal-noise ratio, etc.
  
• Frequency conversion (mixing) of radiofrequency signals using photonic technology, capable of implementing this functionality in multiple frequency bands in a reconfigurable way, with high commutation speed. These developments are carried out in the heart of new telecommunication satellites architectures, characterized by their wide flexibility and ability to adapt to the evolution of the traffic and connectivity needs.
  
• Reconfigurable multichannel filters in RF and millimetric bands, from notch filters to high quality (Q) band pass filters, being possible to implement filtering structures like FIR, IIR or based in non-linearities in passive devices.
  
• Beam-former optical networks for phased-array antennas, which take advantage of photonic technology (high bandwidth, fast commutation, low weight, low consumption, RF interference immunity and high parallelism) to reconfigure dynamically its radiation characteristics.
  
• Systems for generation and reception of high speed digital modulations (above 1 Gbit/s) at radiofrequency and millimetrics carrier frequencies, for applications like wireless interconnection among MAN and WAN networks, using optical fiber.