Gallium Arsenide (GaAs) Quantum Photonic Waveguide Circuits

Abstract

Integrated quantum photonics is a promising approach for future practical and large-scale quantum information processing technologies, with the prospect of on-chip generation, manipulation and measurement of complex quantum states of light. The gallium arsenide (GaAs) material system is a promising technology platform, and has already successfully demonstrated key components including waveguide integrated single-photon sources and integrated single-photon detectors. However, quantum circuits capable of manipulating quantum states of light have so far not been investigated in this material system. Here, we report GaAs photonic circuits for the manipulation of single-photon and two-photon states. Two-photon quantum interference with a visibility of 94.9 +/- 1.3% was observed in GaAs directional couplers. Classical and quantum interference fringes with visibilities of 98.6 +/- 1.3% and 84.4 +/- 1.5% respectively were demonstrated in Mach-Zehnder interferometers exploiting the electro-optic Pockels effect. This work paves the way for a fully integrated quantum technology platform based on the GaAs material system.

10 pages, 4 figures

References in corpus (12)

• Photonic quantum technologies
• Optical Quantum Computing
• Silica-on-Silicon Waveguide Quantum Circuits
• Quantum walks of correlated particles
• Beating the Standard Quantum Limit with Four Entangled Photons
• Shor's quantum factoring algorithm on a photonic chip
• Manipulating multi-photon entanglement in waveguide quantum circuits
• Polarization entangled state measurement on a chip
• Beating the standard quantum limit: Phase super-sensitivity of N-photon interferometers
• High-fidelity operation of quantum photonic circuits
• An Efficient Integrated Two-Color Source for Heralded Single Photons
• Four-Photon Interference with Asymmetric Beam Splitters

Cited by in corpus (5)

• Silicon Quantum Photonics
• Recent advances on integrated quantum communications
• Near-unity indistinguishability single photon source for large-scale integrated quantum optics
• On-chip generation and demultiplexing of quantum correlated photons using a silicon-silica monolithic photonic integration platform
• Polarization-entangled photon pair sources based on spontaneous four wave mixing assisted by polarization mode dispersion