  Semiconductor quantum dots, as promising solid-state platform, have exhibited
deterministic photon pair generation with high polarization entanglement
f\textcompwordmark idelity for quantum information applications. However, due
to temporal correlation from inherently cascaded emission, photon
indistinguishability is limited, which restricts their potential scalability to
multi-photon experiments. Here, by utilizing quantum interferences to decouple
polarization entanglement from temporal correlation, we improve multi-photon
entanglement f\textcompwordmark idelity from $(58.7\pm 2.2)\%$ to $(75.5\pm
2.0)\%$. Our work paves the way to realize scalable and high-quality
multi-photon states from quantum dots.
