Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes
Cointegration of heralded single-photon generation and on-chip detection requires the ability to differentiate between pump light and single photons. We explored the dispersion-induced temporal separation of optical pulses to reach this goal. Our method exploits the distinct group velocities of pump...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/ade46c |
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| _version_ | 1849428797881843712 |
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| author | Julian Brockmeier Timon Schapeler Nina Amelie Lange Jan Philipp Höpker Harald Herrmann Christine Silberhorn Tim J Bartley |
| author_facet | Julian Brockmeier Timon Schapeler Nina Amelie Lange Jan Philipp Höpker Harald Herrmann Christine Silberhorn Tim J Bartley |
| author_sort | Julian Brockmeier |
| collection | DOAJ |
| description | Cointegration of heralded single-photon generation and on-chip detection requires the ability to differentiate between pump light and single photons. We explored the dispersion-induced temporal separation of optical pulses to reach this goal. Our method exploits the distinct group velocities of pump light and single photons, as well as single-photon detectors with high timing resolution. We simulate the propagation for photon pair generation by spontaneous parametric down-conversion in titanium in-diffused waveguides in lithium niobate and thin-film lithium niobate, and spontaneous four-wave mixing in silicon on insulator and silicon nitride. For the different integration platforms, we show the propagation distance required to sufficiently distinguish between pump and single photons for different timing resolutions, and demonstrate that this should be feasible with current superconducting nanowire single-photon detector technologies. Finally, we experimentally simulate our approach using the dispersion in the optical fiber. |
| format | Article |
| id | doaj-art-5c4ce4c3d4974bf4a307f5d881535de0 |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-5c4ce4c3d4974bf4a307f5d881535de02025-08-20T03:28:34ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127707410110.1088/1367-2630/ade46cHarnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processesJulian Brockmeier0https://orcid.org/0009-0007-2869-0268Timon Schapeler1https://orcid.org/0000-0001-7652-1716Nina Amelie Lange2https://orcid.org/0000-0001-6624-7098Jan Philipp Höpker3https://orcid.org/0000-0002-8174-0734Harald Herrmann4https://orcid.org/0000-0002-6914-2782Christine Silberhorn5https://orcid.org/0000-0002-2349-5443Tim J Bartley6https://orcid.org/0000-0002-4145-846XDepartment of Physics, Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyDepartment of Physics, Paderborn University , Warburger Str. 100, 33098 Paderborn, Germany; Institute for Photonic Quantum Systems (PhoQS), Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyDepartment of Physics, Paderborn University , Warburger Str. 100, 33098 Paderborn, Germany; Institute for Photonic Quantum Systems (PhoQS), Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyDepartment of Physics, Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyIntegrated Quantum Optics Group, Institute for Photonic Quantum Systems (PhoQS), Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyIntegrated Quantum Optics Group, Institute for Photonic Quantum Systems (PhoQS), Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyDepartment of Physics, Paderborn University , Warburger Str. 100, 33098 Paderborn, Germany; Institute for Photonic Quantum Systems (PhoQS), Paderborn University , Warburger Str. 100, 33098 Paderborn, GermanyCointegration of heralded single-photon generation and on-chip detection requires the ability to differentiate between pump light and single photons. We explored the dispersion-induced temporal separation of optical pulses to reach this goal. Our method exploits the distinct group velocities of pump light and single photons, as well as single-photon detectors with high timing resolution. We simulate the propagation for photon pair generation by spontaneous parametric down-conversion in titanium in-diffused waveguides in lithium niobate and thin-film lithium niobate, and spontaneous four-wave mixing in silicon on insulator and silicon nitride. For the different integration platforms, we show the propagation distance required to sufficiently distinguish between pump and single photons for different timing resolutions, and demonstrate that this should be feasible with current superconducting nanowire single-photon detector technologies. Finally, we experimentally simulate our approach using the dispersion in the optical fiber.https://doi.org/10.1088/1367-2630/ade46cpump rejectionintegrated photonicssingle-photon sourcesSPDCsingle-photon detection |
| spellingShingle | Julian Brockmeier Timon Schapeler Nina Amelie Lange Jan Philipp Höpker Harald Herrmann Christine Silberhorn Tim J Bartley Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes New Journal of Physics pump rejection integrated photonics single-photon sources SPDC single-photon detection |
| title | Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes |
| title_full | Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes |
| title_fullStr | Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes |
| title_full_unstemmed | Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes |
| title_short | Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes |
| title_sort | harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single photon generation processes |
| topic | pump rejection integrated photonics single-photon sources SPDC single-photon detection |
| url | https://doi.org/10.1088/1367-2630/ade46c |
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