GUERBER , Sylvain

On-chip pump rejection filters are key building blocks in a variety of applications exploiting nonlinear phenomena, including Raman spectroscopy and photon-pair generation. Ultrahigh rejection has been achieved in the silicon technology by non-coherent cascading of modal-engineered Bragg filters. However, this concept cannot be directly applied...

Applications such as Raman spectroscopy and quantum communications are becoming more prevalent on chip, which is increasing the demand for ultra-high rejection integrated filters. In this study, we present a new type of silicon nitride (SiN) Bragg filter with an asymmetric sinusoidal geometry that uses a non-coherent cascading multimodal...

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