Non-classical interference in integrated 3D multiports

Abstract

We demonstrate three and four input multiports in a three dimensional glass platform, fabricated using the femtosecond laser direct-write technique. Hong-Ou-Mandel (HOM) interference is observed and a full quantum characterisation is performed, obtaining two photon correlation matrices for all combinations of input and output ports. For the three-port case, the quantum visibilities are accurately predicted solely from measurement of the classical coupling ratios.

10 pages, 16 figures, journal article

References in corpus (5)

• Silica-on-Silicon Waveguide Quantum Circuits
• Quantum walks of correlated particles
• Realization of quantum walks with negligible decoherence in waveguide lattices
• Multimode quantum interference of photons in multiport integrated devices
• GaN directional couplers for integrated quantum photonics

Cited by in corpus (5)

• Multi-photon quantum interference in a multi-port integrated photonic device
• Partial indistinguishability theory for multi-photon experiments in multiport devices
• Tuneable quantum interference in a 3D integrated circuit
• Complete three photon Hong-Ou-Mandel interference at a three port device
• The Computational Power of Non-interacting Particles