High-flux, high-visibility entangled photon source obtained with a non-collinear type-II PPKTP crystal pumped by a broadband continuous-wave diode laser

Guo, Shanlong; Shang, Ke

doi:10.1016/j.optcom.2023.129586

Optics Communications

2023

DOI: 10.1016/j.optcom.2023.129586

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High-flux, high-visibility entangled photon source obtained with a non-collinear type-II PPKTP crystal pumped by a broadband continuous-wave diode laser

Shanlong Guo

Ke Shang

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2024

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Cited by 3 publications

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

Wang,

Lin

2024

J. Eur. Opt. Society-Rapid Publ.

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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 KTiOPO_4(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 degree 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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The single-cycle biphotons generated by noncollinear SPDC in the chirped QPM crystals

Wang,

Lin

2024

J. Eur. Opt. Society-Rapid Publ.

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Four-qubit photonic system for publicly verifiable quantum random numbers and generation of public and private key

Kolangatt,

Verma,

Matta

et al. 2024

Phys. Rev. A

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3.2 μm波段基于铌酸锂晶体的类束状量子光源（特邀）

You Shixin,

Yuan Chenzhi,

Jin Ruibo

2024

激光与光电子学进展

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High-flux, high-visibility entangled photon source obtained with a non-collinear type-II PPKTP crystal pumped by a broadband continuous-wave diode laser

Cited by 3 publications

References 36 publications

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

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

Four-qubit photonic system for publicly verifiable quantum random numbers and generation of public and private key

3.2 μm波段基于铌酸锂晶体的类束状量子光源（特邀）

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