Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons
We introduce a new kind of spontaneous four wave mixing process for the generation of photon pairs, in which the four waves involved counter-propagate in a guided-wave ${\chi }^{(3)}$ medium; we refer to this process as counter-propagating spontaneous four wave mixing (CP-SFWM). We show that for the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/10/103026 |
| _version_ | 1797751037307650048 |
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| author | Jorge Monroy-Ruz Karina Garay-Palmett Alfred B U’Ren |
| author_facet | Jorge Monroy-Ruz Karina Garay-Palmett Alfred B U’Ren |
| author_sort | Jorge Monroy-Ruz |
| collection | DOAJ |
| description | We introduce a new kind of spontaneous four wave mixing process for the generation of photon pairs, in which the four waves involved counter-propagate in a guided-wave ${\chi }^{(3)}$ medium; we refer to this process as counter-propagating spontaneous four wave mixing (CP-SFWM). We show that for the simplest CP-SFWM source, in which all waves propagate in the same polarization and transverse mode and in which self- and cross-phase modulation effects are negligible, phasematching is attained automatically regardless of dispersion in the fiber or waveguide. Furthermore, we show that in two distinct versions of this source (both pumps pulsed, or one pump pulsed and the remaining one monochromatic), the two-photon state is automatically factorable provided that the length of the nonlinear medium exceeds a certain threshold, easily achievable in practice since this threshold length tends to be in the range of mm to cm. We also show that if one of the pumps approaches the monochromatic limit, and for a sufficient nonlinear medium length, the bandwidth of one of the two photons in a given pair may be reduced to the level of MHz, compatible with electronic transitions for the implementation of atom–photon interfaces, without the use of optical cavities. |
| first_indexed | 2024-03-12T16:42:35Z |
| format | Article |
| id | doaj.art-82ffe6234fd2495b8b1e378ddde61efd |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:42:35Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-82ffe6234fd2495b8b1e378ddde61efd2023-08-08T14:24:30ZengIOP PublishingNew Journal of Physics1367-26302016-01-01181010302610.1088/1367-2630/18/10/103026Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photonsJorge Monroy-Ruz0Karina Garay-Palmett1Alfred B U’Ren2Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México , Apartado Postal 70-543, 04510 DF, MéxicoDepartamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Apartado Postal 360 Ensenada, BC 22860, MéxicoInstituto de Ciencias Nucleares, Universidad Nacional Autónoma de México , Apartado Postal 70-543, 04510 DF, MéxicoWe introduce a new kind of spontaneous four wave mixing process for the generation of photon pairs, in which the four waves involved counter-propagate in a guided-wave ${\chi }^{(3)}$ medium; we refer to this process as counter-propagating spontaneous four wave mixing (CP-SFWM). We show that for the simplest CP-SFWM source, in which all waves propagate in the same polarization and transverse mode and in which self- and cross-phase modulation effects are negligible, phasematching is attained automatically regardless of dispersion in the fiber or waveguide. Furthermore, we show that in two distinct versions of this source (both pumps pulsed, or one pump pulsed and the remaining one monochromatic), the two-photon state is automatically factorable provided that the length of the nonlinear medium exceeds a certain threshold, easily achievable in practice since this threshold length tends to be in the range of mm to cm. We also show that if one of the pumps approaches the monochromatic limit, and for a sufficient nonlinear medium length, the bandwidth of one of the two photons in a given pair may be reduced to the level of MHz, compatible with electronic transitions for the implementation of atom–photon interfaces, without the use of optical cavities.https://doi.org/10.1088/1367-2630/18/10/103026four wave mixingoptical fiberphoton pair sourcesquantum optics |
| spellingShingle | Jorge Monroy-Ruz Karina Garay-Palmett Alfred B U’Ren Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons New Journal of Physics four wave mixing optical fiber photon pair sources quantum optics |
| title | Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons |
| title_full | Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons |
| title_fullStr | Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons |
| title_full_unstemmed | Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons |
| title_short | Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons |
| title_sort | counter propagating spontaneous four wave mixing photon pair factorability and ultra narrowband single photons |
| topic | four wave mixing optical fiber photon pair sources quantum optics |
| url | https://doi.org/10.1088/1367-2630/18/10/103026 |
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