Phase dependence of non-classical photon number correlations in coupled optical processes
In this paper, the authors investigate the coupling of the radiations generated by a non-degenerate three-level cascade laser and a parametric oscillator in a cavity coupled with a two-mode squeezed vacuum reservoir, using a 50:50 beam splitter. They analyze the quantum statistical properties of the...
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| Format: | Article |
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Elsevier
2025-12-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950125000872 |
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| author | Getnet Hagazi Deribe Hirpo Sintayehu Tesfa |
| author_facet | Getnet Hagazi Deribe Hirpo Sintayehu Tesfa |
| author_sort | Getnet Hagazi |
| collection | DOAJ |
| description | In this paper, the authors investigate the coupling of the radiations generated by a non-degenerate three-level cascade laser and a parametric oscillator in a cavity coupled with a two-mode squeezed vacuum reservoir, using a 50:50 beam splitter. They analyze the quantum statistical properties of the light superposed via the standard beam splitter with phase shift ϕ. When the beams of light superpose in phase (ϕ=0) and operate above threshold, they demonstrate that the mean and variance of photon number increase initially and remain constant over time. They also show that these quantities significantly rise with the linear gain coefficient when more atoms are initially prepared in the top energy level, and, regardless of the initial atomic preparation, increase with the driving amplitude of the parametric oscillator. Furthermore, at steady state and above threshold, the authors reveal that the superposed radiation, despite exhibiting super-Poissonian statistics, displays non-classical photon number correlations due to strong cross-correlations between the cavity modes of the coupled systems. |
| format | Article |
| id | doaj-art-d56af55e571e43bea2b0dd44c536338c |
| institution | DOAJ |
| issn | 2666-9501 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj-art-d56af55e571e43bea2b0dd44c536338c2025-08-20T03:24:03ZengElsevierResults in Optics2666-95012025-12-012110085910.1016/j.rio.2025.100859Phase dependence of non-classical photon number correlations in coupled optical processesGetnet Hagazi0Deribe Hirpo1Sintayehu Tesfa2Physics Department, Addis Ababa University, Addis Ababa, P.O. Box 1176, Addis Ababa, Ethiopia; Physics Department, Dire Dawa University, Dire Dawa, P.O. Box 1362, Dire Dawa, Ethiopia; Corresponding author at: Physics Department, Dire Dawa University, Dire Dawa, P.O. Box 1362, Dire Dawa, Ethiopia.Physics Department, Addis Ababa University, Addis Ababa, P.O. Box 1176, Addis Ababa, EthiopiaPhysics Department, Addis Ababa University, Addis Ababa, P.O. Box 1176, Addis Ababa, EthiopiaIn this paper, the authors investigate the coupling of the radiations generated by a non-degenerate three-level cascade laser and a parametric oscillator in a cavity coupled with a two-mode squeezed vacuum reservoir, using a 50:50 beam splitter. They analyze the quantum statistical properties of the light superposed via the standard beam splitter with phase shift ϕ. When the beams of light superpose in phase (ϕ=0) and operate above threshold, they demonstrate that the mean and variance of photon number increase initially and remain constant over time. They also show that these quantities significantly rise with the linear gain coefficient when more atoms are initially prepared in the top energy level, and, regardless of the initial atomic preparation, increase with the driving amplitude of the parametric oscillator. Furthermore, at steady state and above threshold, the authors reveal that the superposed radiation, despite exhibiting super-Poissonian statistics, displays non-classical photon number correlations due to strong cross-correlations between the cavity modes of the coupled systems.http://www.sciencedirect.com/science/article/pii/S2666950125000872Cavity modesSuperposed radiationPhase shiftPhoton-number correlation |
| spellingShingle | Getnet Hagazi Deribe Hirpo Sintayehu Tesfa Phase dependence of non-classical photon number correlations in coupled optical processes Results in Optics Cavity modes Superposed radiation Phase shift Photon-number correlation |
| title | Phase dependence of non-classical photon number correlations in coupled optical processes |
| title_full | Phase dependence of non-classical photon number correlations in coupled optical processes |
| title_fullStr | Phase dependence of non-classical photon number correlations in coupled optical processes |
| title_full_unstemmed | Phase dependence of non-classical photon number correlations in coupled optical processes |
| title_short | Phase dependence of non-classical photon number correlations in coupled optical processes |
| title_sort | phase dependence of non classical photon number correlations in coupled optical processes |
| topic | Cavity modes Superposed radiation Phase shift Photon-number correlation |
| url | http://www.sciencedirect.com/science/article/pii/S2666950125000872 |
| work_keys_str_mv | AT getnethagazi phasedependenceofnonclassicalphotonnumbercorrelationsincoupledopticalprocesses AT deribehirpo phasedependenceofnonclassicalphotonnumbercorrelationsincoupledopticalprocesses AT sintayehutesfa phasedependenceofnonclassicalphotonnumbercorrelationsincoupledopticalprocesses |