Nonlinear silicon photonics on CMOS compatible tellurium oxide

Silicon photonics is coming of age; however, it is still lacking a monolithic platform for optical sources and nonlinear functionalities prompting heterogeneous integration of different materials tailored to different applications. Here we demonstrate tellurium oxide as a complementary metal oxide semiconductor (CMOS) silicon photonics platform for nonlinear functionalities, which is already becoming an established platform for sources and amplifiers. We show broad band supercontinuum generation covering the entire telecom window and show for the first time third harmonic generation in its integrated embodiment. Together with the now-available lasers and amplifiers on integrated TeO2 this work paves the way for a monolithic TeO2 based nonlinear silicon photonics platform

Progress on a hybrid tellurite glass and silicon nitride waveguide platform for passive, active, and nonlinear photonic integrated circuits

We present on recent progress on a hybrid tellurite glass and silicon nitride photonic platform. We show low loss waveguides and Q factors < 10^6 in microring resonators. We also show rare-earth-doped active devices, including erbium-doped and thulium-doped waveguide amplifiers and thulium-doped microring lasers. Using the same approach, we demonstrate nonlinear functionalities including efficient four-wave-mixing, supercontinuum generation and third harmonic generation in compact microring resonators and waveguides. The platform is highly promising for compact and low-cost passive, active and nonlinear photonic integrated circuits for applications in computing, communications, sensing and metrolog