Spontaneous Parametric Down Conversion in Orientation-Patterned Gallium Phosphide Waveguides at Telecom Wavelength

Alice Marceau,Sylvain Combrié,Inès Ghorbel,Isabelle Sagnes,Alfredo De Rossi, Konstantinos Panzas,Arnaud Grisard

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)（2023）

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摘要

Generation of entangled photon pairs at telecom wavelength has been garnering a growing interest in the context of quantum communications and quantum computing. Several generation techniques have been proposed, including spontaneous Four-Wave Mixing in resonators or Spontaneous Parametric Down Conversion (SPDC) in Periodically Polled Lithium Niobate (PPLN) waveguides. Large photon pair efficiencies have been demonstrated in particular in PPLN on insulator [3]. However, polarization entangled photon pair generation (Type II phase matching configuration) suffers from a less favourable non-linear coefficient and optical mode birefringence in PPLN.

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关键词

entangled photon pairs,Four-Wave Mixing,generation techniques,orientation-patterned gallium phosphide waveguides,Periodically Polled Lithium Niobate waveguides,photon pair efficiencies,photon pair generation,PPLN,quantum communications,quantum computing,Spontaneous Parametric,telecom wavelength,Type II phase matching configuration

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