Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion
We present experimental realization of type-II spontaneous parametric down-conversion in a periodically poled potassium titanyl phosphate (KTIiOPO4) nonlinear waveguide. We demonstrate that by careful exploitation of intermodal dispersion in the waveguide it is feasible to produce photon pairs in we...
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| Format: | Journal article |
| Language: | English |
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2012
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| author | Karpinski, M Radzewicz, C Banaszek, K |
| author_facet | Karpinski, M Radzewicz, C Banaszek, K |
| author_sort | Karpinski, M |
| collection | OXFORD |
| description | We present experimental realization of type-II spontaneous parametric down-conversion in a periodically poled potassium titanyl phosphate (KTIiOPO4) nonlinear waveguide. We demonstrate that by careful exploitation of intermodal dispersion in the waveguide it is feasible to produce photon pairs in well defined transverse modes without any additional spatial filtering at the output. Spatial characteristics is verified by measurements of the M2 beam quality factors. We also prepared a postselected polarization-entangled two-photon state shown to violate Bell's inequality. Similar techniques based on intermodal dispersion can be used to generate spatial entanglement and hyperentanglement. ©2012 SPIE. |
| first_indexed | 2024-03-07T05:41:09Z |
| format | Journal article |
| id | oxford-uuid:e599673f-8b62-4c07-9982-d5f2780280e5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:41:09Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:e599673f-8b62-4c07-9982-d5f2780280e52022-03-27T10:25:12ZGeneration of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e599673f-8b62-4c07-9982-d5f2780280e5EnglishSymplectic Elements at Oxford2012Karpinski, MRadzewicz, CBanaszek, KWe present experimental realization of type-II spontaneous parametric down-conversion in a periodically poled potassium titanyl phosphate (KTIiOPO4) nonlinear waveguide. We demonstrate that by careful exploitation of intermodal dispersion in the waveguide it is feasible to produce photon pairs in well defined transverse modes without any additional spatial filtering at the output. Spatial characteristics is verified by measurements of the M2 beam quality factors. We also prepared a postselected polarization-entangled two-photon state shown to violate Bell's inequality. Similar techniques based on intermodal dispersion can be used to generate spatial entanglement and hyperentanglement. ©2012 SPIE. |
| spellingShingle | Karpinski, M Radzewicz, C Banaszek, K Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title | Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title_full | Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title_fullStr | Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title_full_unstemmed | Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title_short | Generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| title_sort | generation of spatially pure photon pairs in a multimode nonlinear waveguide using intermodal dispersion |
| work_keys_str_mv | AT karpinskim generationofspatiallypurephotonpairsinamultimodenonlinearwaveguideusingintermodaldispersion AT radzewiczc generationofspatiallypurephotonpairsinamultimodenonlinearwaveguideusingintermodaldispersion AT banaszekk generationofspatiallypurephotonpairsinamultimodenonlinearwaveguideusingintermodaldispersion |