High-Speed Graph State Generation with Nonlinear Integrated Photonics
Abstract
Advances in integrated photonics have enabled low size, weight, and power (SWaP) technologies for quantum communications, computing, and sensing. Integrated photonics is ideal for quantum information applications that require high data transmission rates and processing speeds, robustness and stability, low SWaP, and room temperature operation. From our previous AFOSR project, a novel, low-loss nonlinear photonic platform was developed based on AlGaAs-on-insulator, which resulted in ultra-bright entangled-photon pair sources with efficiencies advancing beyond what has been possible with table-top optical systems. To leverage these new source capabilities, we propose to develop high-speed opto-electronic components integrated with AlGaAs-on-insulator to enhance the robustness and capacity of light for storing and distributing entanglement, which is a key Air Force Strategic 2030 focus area. Our approach utilizes the low loss and high nonlinearity of AlGaAs to (1) generate quantum frequency combs that produce hyper-entangled quantum states encoded in time and frequency, and to (2) create integrated photonic device architectures that enable programmable entanglement through the generation of multi-dimensional graph and hypergraph states using high-speed modulators and interferometric switches that operate at gigahertz clock rates. Such non-classical states go beyond two-photon entanglement that is typically employed for communications; instead, high-dimensional, multi-partite entangled states are more resilient to noise, loss, and tampering, thus serving as low SWaP resources for future quantum networking, communications, and computing. We will transition the technology to commercial foundries by developing heterogeneous integration processes compatible with silicon photonics manufacturing, thereby leveraging the efficient entanglement sources and high-speed opto-electronics of AlGaAs and the low loss of silicon-based photonics for scaling and interconnects.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 06, 2024
- Source ID
- FA95502310525
Entities
People
- Galan Moody
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California, Santa Barbara