Broadband single-photon-level memory in a hollow-core photonic crystal fibre
Storing information encoded in light is critical for realizing optical buffers for all-optical signal processing and quantum memories for quantum information processing. These proposals require efficient interaction between atoms and a well-defined optical mode. Photonic crystal fibres can enhance l...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
| Published: |
2014
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| _version_ | 1797077637628166144 |
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| author | Sprague, M Michelberger, P Champion, T England, D Nunn, J Jin, X Kolthammer, W Abdolvand, A Russell, P Walmsley, I |
| author_facet | Sprague, M Michelberger, P Champion, T England, D Nunn, J Jin, X Kolthammer, W Abdolvand, A Russell, P Walmsley, I |
| author_sort | Sprague, M |
| collection | OXFORD |
| description | Storing information encoded in light is critical for realizing optical buffers for all-optical signal processing and quantum memories for quantum information processing. These proposals require efficient interaction between atoms and a well-defined optical mode. Photonic crystal fibres can enhance light-matter interactions and have engendered a broad range of nonlinear effects; however, the storage of light has proven elusive. Here, we report the first demonstration of an optical memory in a hollow-core photonic crystal fibre. We store gigahertz-bandwidth light in the hyperfine coherence of caesium atoms at room temperature using a far-detuned Raman interaction. We demonstrate a signal-to-noise ratio of 2.6:1 at the single-photon level and a memory efficiency of 27 ± 1%. Our results demonstrate the potential of a room-temperature fibre-integrated optical memory for implementing local nodes of quantum information networks. |
| first_indexed | 2024-03-07T00:20:54Z |
| format | Journal article |
| id | oxford-uuid:7c7fe32b-da9f-4943-be92-74dc9b8983a2 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:20:54Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:7c7fe32b-da9f-4943-be92-74dc9b8983a22022-03-26T20:57:32ZBroadband single-photon-level memory in a hollow-core photonic crystal fibreJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7c7fe32b-da9f-4943-be92-74dc9b8983a2Symplectic Elements at Oxford2014Sprague, MMichelberger, PChampion, TEngland, DNunn, JJin, XKolthammer, WAbdolvand, ARussell, PWalmsley, IStoring information encoded in light is critical for realizing optical buffers for all-optical signal processing and quantum memories for quantum information processing. These proposals require efficient interaction between atoms and a well-defined optical mode. Photonic crystal fibres can enhance light-matter interactions and have engendered a broad range of nonlinear effects; however, the storage of light has proven elusive. Here, we report the first demonstration of an optical memory in a hollow-core photonic crystal fibre. We store gigahertz-bandwidth light in the hyperfine coherence of caesium atoms at room temperature using a far-detuned Raman interaction. We demonstrate a signal-to-noise ratio of 2.6:1 at the single-photon level and a memory efficiency of 27 ± 1%. Our results demonstrate the potential of a room-temperature fibre-integrated optical memory for implementing local nodes of quantum information networks. |
| spellingShingle | Sprague, M Michelberger, P Champion, T England, D Nunn, J Jin, X Kolthammer, W Abdolvand, A Russell, P Walmsley, I Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title | Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title_full | Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title_fullStr | Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title_full_unstemmed | Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title_short | Broadband single-photon-level memory in a hollow-core photonic crystal fibre |
| title_sort | broadband single photon level memory in a hollow core photonic crystal fibre |
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