Expanding the quantum photonic toolbox in AlGaAsOI
Abstract
Aluminum gallium arsenide-on-insulator (AlGaAsOI) exhibits large χ2 and χ3 optical nonlinearities, a wide tunable bandgap, low waveguide propagation loss, and a large thermo-optic coefficient, making it an exciting platform for integrated quantum photonics. With ultrabright sources of quantum light established in AlGaAsOI, the next step is to develop the critical building blocks for chip-scale quantum photonic circuits. Here we expand the quantum photonic toolbox for AlGaAsOI by demonstrating edge couplers, 3 dB splitters, tunable interferometers, and waveguide crossings with performance comparable to or exceeding silicon and silicon-nitride quantum photonic platforms. As a demonstration, we de-multiplex photonic qubits through an unbalanced interferometer, paving the route toward ultra-efficient and high-rate chip-scale demonstrations of photonic quantum computation and information applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 01, 2022
- Source ID
- 10.1063/5.0098984
Entities
People
- Alex Dinkelacker
- C. Mcdonald
- Chang Liu
- Galan Moody
- John E. Bowers
- Joshua E. Castro
- Lillian Thiel
- P. Pintus
- Trevor J. Steiner
Organizations
- Air Force Office of Scientific Research
- Cisco
- National Science Foundation