Nonlinear Quantum Photonics
Nonlinear photonics plays a critical role in quantum photonics and quantum information, as it enables essential processes for generating, manipulating, and detecting quantum states of light. Our lab specializes in III-V materials for quantum photonic state engineering, including AlGaAs, InGaP, and their integration with ultra-low-loss platforms including silicon nitride. We utilize 100-mm wafer-scale fabrication and deep-UV optical lithography in UCSB's cleanroom to create ultrabright quantum light sources and related technologies, including entangled-photon pair sources, squeezers, and quantum frequency combs in combination with ultra-low-loss photonic circuits, passive and active components, and superconducting nanowire single-photon detectors. By heterogeneously or hybridly integrating these quantum photonic components onto a single modular platform, we significantly reduce the size, weight, power, and cost (SWaP-C) while simultaneously enhancing the functionality and phase stability, scalability, and manufacturability.
Current projects in the QPL include:
- Dense quantum information encoding with multiplexed microresonator arrays [collaboration with University of Pavia]
- Multi-photon entanglement generation and deterministic non-Gaussian state generation [with University of Toronto]
- High-dimensional frequency bin quantum state encoding [with ORNL]
- Integrated photonic squeezed light detectors [with Caltech, UVA, MIT LIGO, and Nexus Photonics]
- Systems integration [e.g. Nexus Photonics lasers + QPL quantum sources]
