Expanding the Quantum Photonic Toolbox in AlGaAsOI
- URL: http://arxiv.org/abs/2205.06912v1
- Date: Fri, 13 May 2022 22:15:45 GMT
- Title: Expanding the Quantum Photonic Toolbox in AlGaAsOI
- Authors: Joshua E. Castro, Trevor J. Steiner, Lillian Thiel, Alex Dinkelacker,
Corey McDonald, Paolo Pintus, Lin Chang, John E. Bowers, Galan Moody
- Abstract summary: Aluminum gallium arsenide-on-insulator (AlGaAsOI) exhibits large optical nonlinearities, a wide tunable bandgap, low waveguide propagation loss, and a large thermo-optic coefficient.
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.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Aluminum gallium arsenide-on-insulator (AlGaAsOI) exhibits large
$\chi^\left(2\right)$ and $\chi^\left(3\right)$ 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 demultiplex
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.
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