Communications Optiques

Because of our unrestrained use of digital technologies, data centers are overloading electrical grids and demanding huge amounts of water and energy. Faced with our inability to envision new paradigms for our societies, researchers work on energy-efficient and high bandwidth

High-power optical amplification is a key requirement for future high-capacity Free-Space Optical (FSO) feeder links. In particular, GEO-to-ground links experience very high free-space losses, of about 290 dB over a 36,000 km distance, making the generation of very high optical

These research efforts focus on developing an innovative method to optimize the coefficients of an analog Feed-Forward Equalizer (FFE-ASP) for 50G-PON systems. The approach leverages a Minimum Mean Square Error (MMSE)-based Least Mean Squares (LMS) algorithm, addressing the challenge of

Free-space optical communication offers advantages over radio-frequency systems, including higher bandwidth and improved security, but requires high beam quality and power to overcome atmospheric disturbances. To tackle nonlinear effects and power scaling limitations, one solution is coherent beam combining (CBC),

Silicon photonics offers solutions to meet the needs of increasing transmission capacities within data centers, by proposing low-cost components with reduced energy consumption, compatible with large-scale production leveraging on industrial microelectronics fabrication processes. Among these components, modulators are key elements

The growing demand for data, mainly for fixed and mobile access networks, is pushing telecommunications players to develop or even reinvent networks. The new uses offered to network users, such as new generations of mobile networks, telemedicine, the development of