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Home > Research Areas > Devices and functionalities for optical communications

Axis I: Devices and functionalities for optical communications

This research axis deals with the design, the realization, the characterization and the validation of photonic components and setups for optical communications.

This application field is meant in the broadest sense, since it spreads from the telecommunication network core, with studies of the optical signal processing, up to optical interconnections with miniaturization constraints and energetic footprint reduction. It addresses the upstream line of research (physics, materials, component technologies) as well as the system line of research with studies on all-optical signal processing or future systems and optical networks.

The laboratory aims at contributing to the development of:

  • new materials in the visible and in the near infra-red (semiconductors, III-V, silica, nanostructures),
  • photonic components (side- or surface- emitting semiconductor lasers, mode-locked lasers, semi-conductor laser amplifiers, micro-resonators),
  • or functions for optical telecommunications, from the chip to the telecommunication system (all-optical information processing, modulation techniques, multiplexing and advanced detection).

It aims at demonstrating that the prospects given by optics in terms of transmission capacity as well as energetic consumption will still be advantageous for short or long haul communication systems (domestic networks, optical access, datacenter…).

  • InP-based high performance lasers emitting at 1,55 µm for optical communications,
  • III-V hybrid components on silicon for future networks,
  • development of lasers and emitters on silicon emitting in the near infra-red,
  • electronical structure simulations of nanostructured materials and laser components,
  • all optical signal processing, using especially parametrical effects in optical fibers or waveguides,
  • digital signal processing for optical communications in relationship with IRISA (generation and detection of high rate signals modulated in amplitude and phase by PERSYST)
  • Use of the spatial dimension as a new degree of freedom for the signal multiplexing and optical processing,
  • Optical interconnections for future network-on-chip