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Generation of a CW anti-bunched photon field from a thin-film PPLN waveguide by two-photon interference with a weak coherent state

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arxiv 2508.10135 v1 pith:DRHP2VHP submitted 2025-08-13 quant-ph

Generation of a CW anti-bunched photon field from a thin-film PPLN waveguide by two-photon interference with a weak coherent state

classification quant-ph
keywords statetwo-photonanti-bunchedcoherentfieldphotoninterferenceon-chip
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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An anti-bunched photon field is produced from a thin-film ppln waveguide by mixing the on-chip two-photon state with a weak but matched coherent state. This is achieved by taking out the two-photon part of the coherent state via a destructive two-photon interference with the on-chip two-photon state. We achieve a photon rate of 100 kHz with a g2-value of 0.35. This anti-bunched light field will have applications in high-resolution quantum imaging such as long baseline quantum telescopy for enhancing the signal-to-noise ratio.

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