Waveguide Amplifiers in SiN Photonics Heterogeneous Integration with Er:Yb:TeO2 thin films

A heterogeneous optical amplifier is proposed and present in an alternative silicon nitride (SiN) waveguide via integration with an erbium-ytterbium co-doped tellurium oxide layer. This work provides an efficient and innovative strategy to implement SiN-based integrated waveguide amplifiers.