Prof. Shayan Mookherjea's Webinar @ IQTI on Integrated Quantum Photonics

Title : Integrated photonics for high-performance quantum sources and detectors

Abstract: Integrated photonics can greatly reduce the size, weight and power (SWaP) of optical assemblies, and also improve functionality and utility of quantum photonic sources and detectors. This may benefit the large-scale deployment and adoption of microchip-scale integrated devices for practical quantum communications and sensing.

We report on progress in entangled photon-pair generation using spontaneous four-wave mixing(SFWM) in silicon photonic micro-resonators and using spontaneous parametric down-conversion (SPDC) in periodically-poled thin-film lithium niobate waveguides. We demonstrate gating and switching of single photons using integrated electro-optic modulators. Using high-bandwidth electro-optic modulators and superconducting nanowire single-photon detectors, we demonstrate capture of ultra-high bandwidth ( greater than100 GHz) optical modulated signals at ultra-low received average power (below -100 dBm), a new milestone in optical oscilloscopy.

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