Phase-controlled integrated photonic quantum circuits

Scalable photonic quantum technologies are based on multiple nested interferometers. To realize this architecture, integrated optical structures are needed to ensure stable, controllable, and repeatable operation. Here we show a key proof-of-principle demonstration of an externally-controlled photon...

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Main Authors: Smith, B, Kundys, D, Thomas-Peter, N, Smith, P, Walmsley, I
Format: Journal article
Published: 2009
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author Smith, B
Kundys, D
Thomas-Peter, N
Smith, P
Walmsley, I
author_facet Smith, B
Kundys, D
Thomas-Peter, N
Smith, P
Walmsley, I
author_sort Smith, B
collection OXFORD
description Scalable photonic quantum technologies are based on multiple nested interferometers. To realize this architecture, integrated optical structures are needed to ensure stable, controllable, and repeatable operation. Here we show a key proof-of-principle demonstration of an externally-controlled photonic quantum circuit based upon UV-written waveguide technology. In particular, we present non-classical interference of photon pairs in a Mach-Zehnder interferometer constructed with X couplers in an integrated optical circuit with a thermo-optic phase shifter in one of the interferometer arms.
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spelling oxford-uuid:7bdc5707-d08c-4425-95a4-93c34b1844bd2022-03-26T20:53:20ZPhase-controlled integrated photonic quantum circuitsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7bdc5707-d08c-4425-95a4-93c34b1844bdSymplectic Elements at Oxford2009Smith, BKundys, DThomas-Peter, NSmith, PWalmsley, IScalable photonic quantum technologies are based on multiple nested interferometers. To realize this architecture, integrated optical structures are needed to ensure stable, controllable, and repeatable operation. Here we show a key proof-of-principle demonstration of an externally-controlled photonic quantum circuit based upon UV-written waveguide technology. In particular, we present non-classical interference of photon pairs in a Mach-Zehnder interferometer constructed with X couplers in an integrated optical circuit with a thermo-optic phase shifter in one of the interferometer arms.
spellingShingle Smith, B
Kundys, D
Thomas-Peter, N
Smith, P
Walmsley, I
Phase-controlled integrated photonic quantum circuits
title Phase-controlled integrated photonic quantum circuits
title_full Phase-controlled integrated photonic quantum circuits
title_fullStr Phase-controlled integrated photonic quantum circuits
title_full_unstemmed Phase-controlled integrated photonic quantum circuits
title_short Phase-controlled integrated photonic quantum circuits
title_sort phase controlled integrated photonic quantum circuits
work_keys_str_mv AT smithb phasecontrolledintegratedphotonicquantumcircuits
AT kundysd phasecontrolledintegratedphotonicquantumcircuits
AT thomaspetern phasecontrolledintegratedphotonicquantumcircuits
AT smithp phasecontrolledintegratedphotonicquantumcircuits
AT walmsleyi phasecontrolledintegratedphotonicquantumcircuits