Artificial dispersion of active optical coupled resonator systems

We study both theoretically and experimentally the dispersive properties of single or coupled active resonators. In the case of single resonator systems, we present a simple experimental protocol which allows us to obtain in detail its coupling regime and thus their dispersive properties. We show that the active coupled systems offer some degrees of freedom to tailor the high dispersion orders. All the propositions are experimentally tested using a model system made of Er 3 + doped fiber ring resonators. These artificial media could be used as tunable or amplifying compact optical delay lines. We also show that the proposed experimental protocol can be applied to passive whispering gallery mode resonators. To cite this article: S. Trebaol et al., C. R. Physique 10 (2009).