Hybrid photonic circuit for multiplexed heralded single photons

Thomas Meany (1) , Lutfi Arif Ngah (2) , Matthew J. Collins (3) , Alex S. Clark (3) , Robert J. Williams (1) , Benjamin J. Eggleton (3) , M. J. Steel (1) , Michael J. Withford (1) , Olivier Alibart (2) , Sébastien Tanzilli (2)

1 CUDOS - Centre for Ultrahigh Bandwidth Devices for Optical Systems
2 LPMC - Laboratoire de physique de la matière condensée
3 CUDOS - Centre for Ultrahigh Bandwidth Devices for Optical Systems

A key resource for quantum optics experiments is an on-demand source of single and multiple photon states at telecommunication wavelengths. This letter presents a heralded single photon source based on a hybrid technology approach, combining high efficiency periodically poled lithium niobate waveguides, low-loss laser inscribed circuits, and fast (>1 MHz) fibre coupled electro-optic switches. Hybrid interfacing different platforms is a promising route to exploiting the advantages of existing technology and has permitted the demonstration of the multiplexing of four identical sources of single photons to one output. Since this is an integrated technology, it provides scalability and can immediately leverage any improvements in transmission, detection and photon production efficiencies.

Mots clés: Quantum information; Non-classical light; Integrated optics; Nonlinear optics

Domaines: Physique Quantique [quant-ph]

Thomas Meany, Lutfi Arif Ngah, Matthew J. Collins, Alex S. Clark, Robert J. Williams, et al.. Hybrid photonic circuit for multiplexed heralded single photons. Laser and Photonics Reviews, 2014, 8 (3), pp.L42-L46. ⟨10.1002/lpor.201400027⟩. ⟨hal-01054174⟩