Waveguide Bragg gratings for photonic noise suppression in silicon photon pair sources (Conference Presentation)

Silicon photonics is considered an enabling technology for the development of high-performance photon-pair sources for quantum information applications. However, the substantially higher pump intensity and narrow wavelength separation between the photon-pairs and the optical pump impose stringent requirements that lie beyond the capabilities of state-of-the-art silicon spectral filters. In this invited talk we will present an overview of our recent advances in the field of waveguide Bragg gratings for photonic noise reduction in silicon photon-pair sources, including different strategies harnessing subwavelength and modal engineering to overcome the bandwidth-rejection trade-off in state-of-the-art implementations.