The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals

We analysis the noncollinear Spontaneous Parametric Down Conversion (SPDC) and compare the biphotons generated by the chirped Quasi-Phase-Matching (QPM) between the Periodically Poled Lithium Niobate (PPLN) and Periodically Poled KTiOPO4 (PPKTP) crystals. Due to the chirping of the crystals, the fre...

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Main Authors: Wang Jinbao, Lin Haibo
Format: Article
Language:English
Published: EDP Sciences 2024-01-01
Series:Journal of the European Optical Society-Rapid Publications
Subjects:
Online Access:https://jeos.edpsciences.org/articles/jeos/full_html/2024/01/jeos20240003/jeos20240003.html
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author Wang Jinbao
Lin Haibo
author_facet Wang Jinbao
Lin Haibo
author_sort Wang Jinbao
collection DOAJ
description We analysis the noncollinear Spontaneous Parametric Down Conversion (SPDC) and compare the biphotons generated by the chirped Quasi-Phase-Matching (QPM) between the Periodically Poled Lithium Niobate (PPLN) and Periodically Poled KTiOPO4 (PPKTP) crystals. Due to the chirping of the crystals, the frequency response range of the biphotons would be greatly increased. For nonlinear SPDC, angular variation is limited (less than 0.06° in this paper), and the angle would narrow the frequency response range of the biphotons. We compare the effect of angle in PPLN crystals and PPKTP crystals for biphotons. Both the two crystals with chirped QPM, the single-cycle biphotons can be generated during noncollinear SPDC within a suitable angle range, which is favorable for wider applications in experiments.
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spelling doaj.art-caeb0d706bf44ce2a4e5c9f7b05392092024-04-17T09:13:55ZengEDP SciencesJournal of the European Optical Society-Rapid Publications1990-25732024-01-01201610.1051/jeos/2024004jeos20240003The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystalsWang Jinbao0Lin Haibo1College of Mechanical Engineering, Zhejiang University of TechnologyInstitute of Mechanical & Electrical Technology, Taizhou Vocational & Technical CollegeWe analysis the noncollinear Spontaneous Parametric Down Conversion (SPDC) and compare the biphotons generated by the chirped Quasi-Phase-Matching (QPM) between the Periodically Poled Lithium Niobate (PPLN) and Periodically Poled KTiOPO4 (PPKTP) crystals. Due to the chirping of the crystals, the frequency response range of the biphotons would be greatly increased. For nonlinear SPDC, angular variation is limited (less than 0.06° in this paper), and the angle would narrow the frequency response range of the biphotons. We compare the effect of angle in PPLN crystals and PPKTP crystals for biphotons. Both the two crystals with chirped QPM, the single-cycle biphotons can be generated during noncollinear SPDC within a suitable angle range, which is favorable for wider applications in experiments.https://jeos.edpsciences.org/articles/jeos/full_html/2024/01/jeos20240003/jeos20240003.htmlchirped qpmbiphotonsnoncollinearspdc
spellingShingle Wang Jinbao
Lin Haibo
The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
Journal of the European Optical Society-Rapid Publications
chirped qpm
biphotons
noncollinear
spdc
title The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
title_full The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
title_fullStr The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
title_full_unstemmed The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
title_short The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals
title_sort single cycle biphotons generated by noncollinear spdc in the chirped qpm crystals
topic chirped qpm
biphotons
noncollinear
spdc
url https://jeos.edpsciences.org/articles/jeos/full_html/2024/01/jeos20240003/jeos20240003.html
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AT wangjinbao singlecyclebiphotonsgeneratedbynoncollinearspdcinthechirpedqpmcrystals
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