Nonlinear Integrated Photonics for Quantum Communications and Computing

(39:53 + Q&A) Trevor Steiner, UC-Santa Barbara -- Presentation from 2023 Workshop on Quantum Computing: Devices, Cryogenic Electronics and Packaging (QC-DCEP) ... 
Summary: The development of scalable optical technologies for quantum communications, computing, and precision measurements requires reducing existing table-top experiments to fully integrated chip-scale photonic circuits. We utilize several approaches, including AlGaAs-on-insulator, silicon nitride, and III-Vs on silicon, that combine ultra-bright deterministic and probabilistic quantum light sources with ultra-low-loss photonic circuits, passive and active components, and superconducting nanowire single-photon detectors. In this talk, I will highlight our record-high entangled photon pair brightness using AlGaAsOI microring resonators as well as show some of our application-focused works that are currently ongoing.
Trevor Steiner is a fifth year Materials PhD student at the University of California Santa Barbara advised by Professor John Bowers and Professor Galan Moody. His work focuses on nonlinear integrated quantum photonics using III-V semiconductor materials. In 2021, he demonstrated an ultrabright entangled photon pair source from AlGaAsOI microring resonators that is over 1000 times more efficient than state-of-the-art SOI quantum light sources. Since this work, he has been focusing on developing integrated circuits using these efficient sources as well as using these sources for applications like quantum key distribution and quantum frequency information processing. Trevor is an NSF Quantum Foundry Fellow and a recipient of the Institute for Energy Efficiency Excellence in Research Fellowship.

Additional videos from the QC-DCEP Workhop can be accessed at https://attend.ieee.org/qc-dcep.