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Radio-Fibre Solutions
Radio-fibre technology (microwave photonics) enables the generation, transmission, and processing of radiofrequency signals in the optical domain. This approach makes the most of the inherent advantages of photonic technology and offers technological solutions with specifications that are unachievable using conventional electronic technology for many types of applications.
Applications include:
- Radiofrequency signal distribution through optical fibre at very high frequencies
(tens or even hundreds of GHz) with extremely low signal degradation (losses,
distortion, non-linearities, etc.)
- Radiofrequency signal generation at high frequencies (millimetric waves) as
local oscillator references for data modulation, and achieving frequencies of tens
and hundreds of GHz with high spectral purity, and high signal-noise ratio, etc.
- Frequency conversion (mixing) of radiofrequency signals using photonic
technology – and the implementation of this functionality in reconfigurable and
multiple frequency bands at high commutation speeds. These developments are
carried out in the heart of new telecommunications satellite architectures,
characterized by their wide flexibility and ability to adapt to the evolution of
traffic and connectivity needs.
- Reconfigurable multi-channel filters in RF and millimetric bands – from notch
filters to high quality (Q) band pass filters. These filters can implement filtering
on FIR and IIR structures, or implement non-linearities in passive devices.
- Beamformer optical networks for phased-array antennas – taking advantage of
photonic technology (high bandwidth, fast commutation, low weight, low
consumption, RF interference immunity, and high parallelism) to dynamically
reconfigure radiation characteristics.
- Systems for the generation and reception of high-speed digital modulations (beyond 1 Gbit/s) at radiofrequency and millimetric carrier frequencies. Used for applications such as wireless interconnection among MAN and WAN networks using optical fibre.
