Présenté par: Roberto Morandotti, INRS-EMT

We summarize our recent results on the generation and the detection of ultrafast optical signals in CMOS-compatible monolithic devices by exploiting the third order nonlinearity of glass based waveguides. For example, schemes based on Four Wave Mixing (FWM) have the advantage of being suitable for centro-symmetric materials, such as silicon or glass – both being fundamental platforms for integrated optics, and compatible with the current CMOS technology. In our talk, we will discuss our recent results, achieved in high index glasses, corresponding to the above-mentioned requirements. We show that novel optical circuits based on the use of high quality ring resonators can be used to realize stand alone and self-pumped OPOs, to generate stable trains of pulses at 200 GHz rep rates with a novel passive mode-locking scheme (that could be efficiently used in certain metrology applications such as the generation of dual combs) and perhaps even to realize efficient schemes for the generation of correlated photons pairs. Furthermore, if time allows, we will present a device based on a spiral waveguide for the amplitude and phase characterization of ultrafast optical pulses working up to 1 THz bandwidth and 100ps time-duration, together with a new phase-recovery algorithm.