Guilhem De Valicourt

Experimental demonstration of enhanced slow and fast light by forced coherent population oscillations in a semiconductor optical amplifier

We experimentally demonstrate enhanced slow and fast light by forced coherent population oscillations in a semiconductor optical amplifier at gigahertz frequencies. This approach is shown to rely on the interference between two different contributions. This opens up the possibility of conceiving a controllable rf phase shifter based on this setup.

Cascadability of Optical Packet-Switching Nodes Based on (R)SOA Devices

We evaluate the benefits and limitations of semi-conductor optical amplifiers (SOAs) and reflective SOAs, when used as logic gates in a 10 Gbit/s per wavelength WDM packet-switched network. We compare three components with different internal structures and provide estimation of the maximum number of cascaded packet-blocker-based nodes.

Semiconductor Optical Amplifier for Next Generation of High Data Rate Optical Packet-Switched Networks

This chapter provides an overview of considerations for the development of semi‐ conductor optical amplifiers (SOA) for the next generations of packet-switched opti‐ cal networks. SOA devices are suitable candidates in order to realize highperformance optical gates due to their high extinction ratio and fast switching time. However such devices also introduce linear and nonlinear noise. The impact of SOA devices on several modulation formats via theoretical model, numerical simu‐ lation, and experimental validation is studied. Impairments introduced by SOAs are considered in order to derive some general network design rules.

Alternative architectures for RF phase shifters and optical delay lines based on slow and fast light in SOAs

We show that forced coherent population oscillations (CPO) constitute an alternative set-up to conceive a controllable RF phase shifter, and that wave-mixing in SOAs opens the possibility to conceive optical tunable delay lines beyond the carrier lifetime limit.

4 channels subcarrier multiplexing optical link using an RSOA modulator

We experimentally demonstrated the performance of a reflective semiconductor optical amplifier (RSOA) used as an external modulator for optical uplink in radio over fiber (RoF) systems. The transmission performances for single and four channels were compared by error vector magnitude (EVM). The experimental results show that a little bit degradation for four channels was obtained when compared to single channels one.